Blog
Fraud prevention guides, product updates and security notes for teams that block fraud without stopping legitimate customers.
All posts
Address verification system (AVS): How it works and where it fails
How AVS matches a billing address against the issuer's records, what each response code means, where the check fails, and what to layer on top of it.
BIN attacks: How they work and how to stop them
A BIN attack tests thousands of generated card numbers against your checkout. How the attack runs, the signals that reveal it, and the controls that stop it.
AI shopping agents: The fraud risk UCP compliance does not cover
What the Universal Commerce Protocol (UCP) does and does not check, how a hijacked account uses an AI shopping agent, and the two-layer defense that catches it.
Authorized push payment fraud: Types, risks and prevention
What authorized push payment fraud is, the six steps of an APP scam, the types from BEC to pig butchering, who is at risk and the controls that stop it.
Reshipping scams: How they work and how to stop them in 2026
How reshipping scams turn stolen cards and work-from-home mules into chargebacks, the red flags on an order, and the checks that block them before fulfilment.
Headless browser attacks: How to detect them in 2026
How Headless Chrome bots run card testing, account takeover and competitor scraping against ecommerce stores, and four detection methods with working code.
Sensfrx is live on the Shopify App Store
Sensfrx is now on the Shopify App Store. Score every session and order for card testing, fake orders, bots and promo abuse, with allow, review or block rules.
OTP bots: How they beat SMS 2FA and how to stop them
How OTP bots trick users out of SMS codes in real time, the JokerOTP numbers, SMS pumping costs, detection signals for SOC teams, and the move to passkeys.
Telecom fraud: Types, detection and prevention
How IRSF, Wangiri, SIM box, PBX hacking and subscription fraud drain telecom revenue, how real-time detection catches them, and what to fix first.
What is vishing? How voice phishing works and how to stop it
How vishing attacks use spoofed caller IDs, pretexts and cloned voices to extract OTPs, credentials and payments, and the steps that stop them.
What is smishing? How to spot and stop SMS phishing attacks
What smishing is, the five steps of an SMS phishing attack, the four most common lures, and what individuals and companies can do to stop it.
Holiday season webinar recap: Payment risk, policy abuse and white signals
Recap of Sensfrx's holiday fraud fireside chat with Tarun Singh and Tauwfiq Wahidi: regional scams, payment risk, refund abuse and white signals.
Doxxing: How it works, examples and how to prevent it
How doxxing works, from breaches and scraping to WHOIS and OSINT, the risks to executives and companies, and the controls that cut exposure.
Free trial abuse: How it works and how to stop it at signup
How free trial abuse works, what it costs SaaS and AI services, the Midjourney and GitLab cases, and a layered, low-friction way to stop it at signup.
How to block bot traffic: Detect and stop automated threats
How to detect and block bot traffic with rate limiting, behavioural analysis, honeypots, fingerprinting and tiered risk scoring, without blocking customers.
App cloning: How to protect your mobile app from fraud
What app cloning is, the five frauds that run on cloned Android apps, why static device IDs fail, and a three-layer detection framework plus RASP.
Ecommerce return optimization: Cut return rates and stop return fraud
What returns cost, the seven types of return fraud, and a two-part plan to cut avoidable returns and keep abusers out without punishing good customers.
Payday loan identity theft: Causes, signs, and prevention
Payday loan identity theft from both sides: the six scam patterns, the warning signs a lender or borrower should catch, and the controls that stop it.
Sensfrx is now GDPR compliant
Sensfrx has achieved full GDPR compliance. What the regulation requires, and what it means for the personal data our customers send us for fraud scoring.
Spear phishing: How attacks work, real cases and how to stop them
What spear phishing is, the five-step attack process, the RSA, Ubiquiti and Google/Facebook cases, and the controls and tools that stop it.
How to protect an ecommerce site from data breaches
What an ecommerce breach costs, six ways attackers get in, a security checklist, the compliance rules that apply, and what to do first after a breach.
Fake reviews and deepfake scams in ecommerce: How they work and how to defend
How fake reviews and deepfakes attack ecommerce: review farms, KYC bypass, contact-centre voice clones and synthetic identities, and the defence for each.
UEBA: How user and entity behaviour analytics catch compromised accounts
What UEBA is, how it builds behaviour baselines, four use cases from insider threat to credential stuffing, tools to compare, and how to avoid alert fatigue.
Credential stuffing: How it works, what it costs and how to stop it
How credential stuffing attacks work, the breaches and losses behind them, the signs that one is under way, and the controls that stop it at the login.
AI in fraud detection: Techniques, use cases and future trends
How AI fraud detection works: supervised and unsupervised models, behavioural biometrics, graph intelligence, explainability, and the risks to manage.
Sniffing attacks: Techniques, tools and defenses explained
How sniffing attacks capture passwords and session tokens off a network, the tools attackers use, how to detect promiscuous-mode sniffers, and how to stop them.
Loyalty fraud detection: Complete guide for 2026
How loyalty programs get abused, the six attack types, what a detection tool must do, and how to build a strategy that keeps points out of fraudsters' hands.
Website Planet interviews Sensfrx's Jinendra Khobare on real-time fraud prevention
Website Planet interviewed Jinendra Khobare, Head of Product Engineering at Sensfrx, on real-time fraud detection and what comes next for the product.
Sensfrx is now live on WiseCP
Sensfrx is on the WiseCP marketplace. Install the module to score signups and payments on your hosting platform and cut bot signups and chargebacks.
Carding tool abusing the WooCommerce API downloaded 34K times on PyPI: How to protect your checkout
A PyPI package downloaded 34,000 times automated stolen-card testing against WooCommerce stores. What it did, what would have stopped it, and what to fix first.
Major data breaches: Attack methods, stats and predictions
Medusind, Finastra, France Travail, AT&T, Dropbox Sign, Slim CD and MOVEit: how each breach happened, what it cost, and which controls would have stopped it.
SafetyDetectives interviews Sensfrx's Jinendra Khobare on fraud detection and AI
SafetyDetectives interviewed Jinendra Khobare, Head of Product Engineering at Sensfrx, on online fraud, AI in detection and how Sensfrx approaches it.
Click fraud: How it works, what it costs, and how to stop it
What click fraud is, who runs it, what it costs ($16.59 billion on Google Ads alone in a single year), and the signals, tools and settings that stop it.
Payment fraud: The 7 types merchants see and how to stop each one
What payment fraud is, the seven types merchants see most with their warning signs, the statistics that size the problem, and the controls that cut losses.
Fraud prevention in remote work environments
The fraud risks that come with remote teams, from ghost employees and time theft to phishing and card misuse, and the controls that keep them in check.
Social media fraud prevention for businesses
Six types of social media fraud that target businesses, four signs your brand is being impersonated, a six-step incident plan and six tools compared.
Cyber resilience vs cybersecurity: The difference and why you need both
What separates cybersecurity from cyber resilience, the five components of each, and what Garmin and Colonial Pipeline show about running them together.
How to deal with web hosting fraud
Common web hosting scams, from fake domain renewals and spoofed registrar emails to oversold servers and shared-IP blacklisting, and what to do about each.
IP whitelisting: How it works, where it fails, and what to use instead
What IP whitelisting (allowlisting) does, how to set it up, where dynamic IPs and remote users break it, and when MFA, RBAC, a VPN or risk scoring fits better.
Device fingerprinting in fraud prevention: How it works and where it pays off
What device fingerprinting is, why cookies and IPs no longer identify a fraudster, the hardware, software and behavior signals that do, and where to use it.
Crypto phishing: How the attacks work and how to stop them
How crypto phishing steals private keys and logins, five scam types to recognise, how to spot a fake message or site, and what to do after a hit.
Collusion fraud: How players cheat together in gaming and betting
Chip dumping, soft play, ghosting, syndicates and insider collusion in online gaming and betting, what they cost operators, and how to detect and stop them.
Fraud detection APIs: How they work and how to integrate one
How fraud detection APIs collect signals, score risk and trigger actions, the five behaviors they flag, why REST fits the job, and the steps to integrate one.
How to build a fraud detection and response plan
The seven parts of a fraud detection and response plan: risk assessment, controls, training, authentication, detection, incident response and communication.
How multi-factor authentication stops online fraud
What MFA is, the three factor types, how it blocks account takeover and phishing, and how to choose between SMS, apps, biometrics and hardware keys.
Predictive analytics in fraud prevention: How it works and where to start
How predictive analytics finds fraud that rules miss, what a working model needs, where it is used, and the three steps to bring it into your operations.
Online gaming fraud: Types, warning signs and how to stop it
The main types of online gaming fraud, the warning signs, what players should do, and the controls developers use against account takeover and bonus abuse.
Card testing fraud: How to spot it and stop it
Card testing is how criminals check which stolen cards still work. The signs in your decline logs, the controls that stop it, and what to do after an attack.
Healthcare insurance fraud detection: Schemes, signals and controls
The main healthcare insurance fraud schemes, the penalties they carry, the analytics that catch them, and the practices insurers use to find and report fraud.
Medical identity theft: How it happens and how to stop it
What medical identity theft is, how patient data gets stolen, the signs a record is compromised, and what providers, insurers and victims should do.
Cybersecurity threats in healthcare: Ransomware, breaches and bots
The attacks that hit hospitals and patient portals (ransomware, breaches, phishing, credential stuffing, DDoS), what they cost, and the controls that stop them.
Airline ticket fraud: Types, warning signs and prevention
The four main airline ticket scams, the warning signs for travellers, who absorbs the loss, and how airlines score bookings to stop fraud before ticketing.
Travel fraud: The four types, how to detect them and how to stop them
Why travel gets hit, the four common fraud types, eight detection signals from geolocation to device fingerprinting, and the rules that stop them.
The top 5 transaction monitoring software in 2026
Sensfrx, SEON, SAS, ComplyAdvantage and SumSub compared on real-time detection, rule flexibility, scale and alert handling, plus how to choose.
Transaction monitoring systems in AML: How they work and what they catch
What an AML transaction monitoring system does, how it differs from fraud detection and screening, which features matter and why false positives pile up.
Buy now pay later (BNPL) fraud: Types, risks and prevention
The seven kinds of BNPL fraud, what they cost merchants and providers, the controls that stop them, and how Sensfrx scores each signup, login and payment.
The 6 best WooCommerce fraud prevention plugins
Six WooCommerce fraud prevention plugins compared on features, pricing and fit: Sensfrx, FraudLabs Pro, Signifyd, WooCommerce Anti-Fraud, Bolt and YITH.
Food delivery fraud: The common scams and how to stop them
Account takeover, refund abuse, card-not-present fraud, promo abuse, GPS spoofing and phishing in food delivery: how each works, what it costs, how to stop it.
Bot protection: What it is, how it works and how to choose a tool
What bot protection is, the five detection methods behind it, the attacks it stops, from credential stuffing to ticket scalping, and what to check in a tool.
Refund fraud: Seven tactics and how to stop each one
What refund fraud is, the NRF numbers, seven tactics from wardrobing to receipt manipulation, and the policies, checks and tools that stop them.
Marketplace fraud: How to recognize and prevent it
Four scams that hit online marketplaces, five warning signs of a fake listing or buyer, and five controls (verification, monitoring, reporting) that stop them.
Bonus abuse: Detection and prevention for risk teams
How fraudsters farm sign-up, referral and deposit bonuses with fake accounts, bots and rings, the signals that give them away, and the controls that stop them.
Identity risk management: What it is and how to do it
Identity risk management covers governance, authentication, authorization and monitoring. How to run an IAM risk assessment and what to fix first.
Digital footprinting in fraud prevention: What it is and how to use it
What a digital footprint is, active versus passive footprints, how ecommerce sites use footprint data to score risk, and the privacy limits to respect.
Multi-accounting: What it is and how to prevent it in 2026
What multi-accounting is, the four schemes behind it (promo abuse, fake reviews, affiliate and bonus abuse), how to detect linked accounts and how to stop them.
Top 10 ecommerce fraud prevention software in 2026
Compare 10 ecommerce fraud prevention tools, including Sensfrx, SEON, Signifyd, Riskified and Sift, with the checks to run before you buy.
10 ways to prevent onboarding fraud
Ten controls that stop fake and stolen identities at signup: identity and document checks, device and IP layers, AML screening and the metrics to watch.
Synthetic identity fraud: How it works and how to stop it
A synthetic identity pairs a real SSN with invented details, passes onboarding and busts out years later. How it is built, who pays, and which checks catch it.
10 best onboarding fraud detection software compared for 2026
Ten onboarding fraud detection tools compared, from signup scorers like Sensfrx and SEON to bank platforms like Feedzai and Verafin, plus how to choose one.
Onboarding fraud: What it is and how it works
Onboarding fraud is a stolen or fabricated identity passing your signup. The forms it takes, how it differs from other fraud, and what stops it.
Account takeover in cryptocurrency: How it happens and how to stop it
How attackers take over crypto exchange and wallet accounts, the signs to watch for, and the controls that stop them at the login.
IP blacklisting: How it works
What an IP blacklist is, the four kinds (public, private, RBL, DNSBL), what gets an address listed, how to check yours, and why rotation and botnets limit it.
Malware attacks: Types, delivery channels and the controls that stop them
What malware is, how it spreads (email, malvertising, compromised sites), the eleven types you will meet, and the ten controls that stop most infections.
How to prevent credential stuffing attacks
How credential stuffing works, what it costs, and the controls that stop it at login: breached-password screening, rate limits, bot detection and MFA.
Preventing account takeovers with AI: How it works
How AI and machine learning score each login on behaviour, device and network signals to stop account takeover, and what the next ATO attacks will look like.
Machine learning in fraud detection: How it works and where it beats rules
How machine learning detects fraud: the three model types, where they beat static rules, the four build stages, and named examples from payments and insurance.
Sandboxing: What it is, best practices and where it fails
What sandboxing is in software testing and security, sandbox types and components, best practices, and where it fails against evasive and zero-day malware.
Ecommerce fraud prevention: Best practices and trends for 2026
How ecommerce fraud works now, the four layers that stop it (identity signals, risk scoring, real-time decisions, feedback loops) and how to pick a tool.
Account takeover techniques: How attackers get in and how to stop them
How account takeover happens, from credential stuffing and phishing to stolen cookies and leaked API keys, what it costs, and the controls that stop it.
The best account takeover prevention tools: A practical guide
Eight account takeover prevention tools compared, how ATO attacks get past passwords and CAPTCHAs, and what to check before you pick one.
Account takeover detection: Best practices for 2026
How account takeover attacks unfold, six signs that show up in your login data, and detection practices (device baselines, IP checks, ML) that catch them.
Account takeover fraud: How it works and how to stop it
What account takeover fraud is, the seven stages of an ATO attack, the statistics and breaches behind it, and six controls that stop it at the login.
Cryptocurrency fraud prevention: How crypto scams work and how to stop them
The main crypto scams, why crypto attracts fraudsters, how to spot a scam, what MiCA and the SEC require, and the controls exchanges and wallets should run.
Page jacking: What it is, the risks and how to prevent it
What page jacking is, how cloned sites steal traffic and data, the warning signs, how to prevent it, and what to do when your pages are copied.
PCI compliance and fraud monitoring: What PCI DSS covers and what it does not
PCI DSS v4.0 merchant levels, the 12 requirements, validation methods, and where compliance ends and transaction fraud scoring has to take over.
Blockchain in transaction fraud prevention: What it fixes and what it does not
How a shared ledger, consensus and smart contracts help prevent transaction fraud, where they fall short, and five real deployments from Maersk to Walmart.
Credit card piggybacking: What it is and how to prevent abuse
What credit card piggybacking is, how traditional and for-profit piggybacking differ, which businesses it hurts, and the checks that stop the abuse.
Cryptocurrency fraud prevention: Strategies & solutions
Common crypto scams (phishing, Ponzi, fake ICOs, pump-and-dump, exit scams), why crypto attracts fraudsters, how to spot them and the controls a platform needs.
Credit card fraud: How it works and how to stop it
How credit card fraud works, from skimming and phishing to the chargeback, why detection is hard, and the controls that stop it for cardholders and merchants.
Phishing attacks: How they work and how to prevent them
How phishing works, the eight forms it takes, the red flags in a phishing email, and the technical, training and policy controls that stop it.
Behavioral fraud detection: Techniques & use cases
How behavioral analytics and biometrics catch account takeover, bots and synthetic signups that IP and device checks miss, plus what to check in a tool.
Triangulation fraud: How it works and how to stop it
How triangulation fraud turns a fake storefront and a stolen card into a chargeback on your store, the red flags to watch for, and the controls that stop it.
Chargeback fraud: What it is and how to prevent it
Chargeback fraud costs merchants the goods, the sale and the fee. How to tell a real dispute from friendly fraud, and nine practices that cut chargebacks.
Dynamic risk scoring: What it is and how it works
How dynamic risk scoring rates every signup, login and payment in real time from device, behavior, location and transaction data, and where it pays off.
AI in transactional fraud detection: How it works and where it fails
How AI models score transactions, where rules fall short, the data and bias problems that limit the models, and what comes next for fraud detection.
Online transaction fraud: The four main types and how to stop each
Where online transaction fraud happens, the four main types (card fraud, triangulation, chargeback abuse, identity theft) and the controls that stop each one.
9 best fraud detection software in 2026
Nine fraud detection tools compared on features, pricing and fit, from Sensfrx and SEON to Signifyd, Forter, Riskified and DataDome, plus how to choose.
IP and browser signals that catch account takeover
Seven login signals Sensfrx scores from IP and browser data: fast geolocation, time zone and phone mismatches, old browsers, Tor exits and disabled cookies.
Email and phone number signals that flag account takeover
Eight checks Sensfrx runs on a user's email and phone number: bad syntax, missing registrar or SPF, expiring domains, disposable providers, digit-heavy names.
6 ways to prevent bot attacks on your website
Six controls that stop bad bots on a website: traffic monitoring, honeypots, risk-based CAPTCHA, device-level blocking, a WAF and rate limits.
8 steps to protect ecommerce customers from account takeover
Eight controls that stop ecommerce account takeover: unique passwords, 2FA, login monitoring, anti-phishing, TLS, patching, education and a response plan.
8 signals that account takeover is hitting your website
Failed logins, support calls, loyalty abuse, chargebacks, bot traffic and new devices: eight signals that account takeover fraud has started on your site.
8 ways fraudsters take over accounts
How fraudsters take over accounts: breaches, phishing, brute force, malware, man-in-the-middle, rogue extensions, password reuse and social engineering.
8 techniques to identify bad devices on your network
Eight checks, from ping and netstat to SNMP and device management, that find infected, misconfigured or out-of-compliance devices on your network.
Credential stuffing attacks: How they work and how to stop them
What a credential stuffing run looks like from the attacker's side and in your logs, why reused passwords make it work, and five controls that cut the hit rate.
Ecommerce account takeover: 7 ways customers lose their accounts
Account takeover is the largest category of ecommerce fraud. Seven routes fraudsters use to get into customer accounts, and what a merchant can do about each.
Good bots and bad bots: How to tell them apart
What bots do, five kinds of good bot and five kinds of bad bot, and the robots.txt, IP, user-agent and behaviour checks that separate them on your site.
Building a layered defense against account takeover attacks
Seven controls that stop account takeover before the login succeeds: WAF, bot management, rate limits, login monitoring, MFA and password managers.
How to set up a fortified authentication system
Nine controls for a hardened login: password rules that work, lockouts that cannot be weaponised, MFA that resists bypass, risk scoring, OTP algorithms and TLS.
How to find and block malicious IP addresses
Seven practical ways to spot and block malicious IP addresses: reputation checks, rate limits, honeypots, edge blocking, scanners, a WAF and your ISP.
5 security checks that stop credential stuffing attacks
Five login checks that stop credential stuffing: rate limits, strong passwords, MFA, breached-password screening and monitoring for suspicious logins.
14 steps to prevent account takeover fraud in 2026
Fourteen controls that stop account takeover: breached-password checks, step-up MFA, login alerts, rate limits, device fingerprinting and risk scoring.
10 authentication rules to prevent account takeover fraud
Ten authentication controls that stop account takeover: step-up MFA, login alerts, password managers, TLS on every login page, staff training and risk scoring.
10 ways fraud prevention managers can reduce account takeover
Ten controls against account takeover a fraud prevention manager can put in place: MFA, risk scores, login monitoring, staff access, leaked credential checks.
Fraud prevention for WHMCS and Blesta: 7 practices for small hosting businesses
Seven checks that stop fraud on WHMCS and Blesta: password rules, two-factor login, HTTPS, activity logs, staff training, updates and payment fraud scoring.
Account takeover fraud: What ecommerce merchants need to know
How account takeover fraud hits ecommerce stores, where attacks come from, the five ways credentials get stolen, and the controls that stop a hijacked login.
Malicious bots and botnets: What they do and how to stop them
How bots and botnets differ, the attacks they run on web apps and APIs (scraping, account takeover, form abuse, DDoS), and how scoring each request stops them.
Fraud prevention plugins for WHMCS and Blesta billing
What the Sensfrx WHMCS module and Blesta extension check at signup, login and checkout, how approve, review and block rules fit in, and where to get them.
Brute force attacks: How they work and how to stop them
How brute force attacks work, the six variants from dictionary attacks to password spraying, the tools attackers use, and the five controls that stop them.
Behavioural user profiling: Spotting a rogue user before the breach
How behavioural profiling builds a baseline for each user from sessions, page visits and timing, and flags the deviations that mark a compromised account.
WHMCS account takeover: How it happens and how to stop it
How attackers take over WHMCS client and admin accounts with leaked credentials, and the login checks that stop them without adding friction for every customer.
No articles match your filters. Try another category or search term.
Ready to block fraud, not customers?
Start free and see how Sensfrx scores risk in real time across signup, login, and checkout.