Guides
2check.click's guides explain how phishing, scams, and malicious links actually work — organized by topic so you can find the specific technique or scam you're dealing with.
Pick a category below, or use the analyzer if you have a specific link or message to check right now.
URL Security
Learn how attackers disguise malicious links with typosquatting, homograph attacks, lookalike domains, URL obfuscation, redirect chains, and tracking parameters — and how to spot them before you click.
View guides →Email Security
Understand how email spoofing works, what SPF, DKIM, and DMARC actually protect against, why links look different inside emails, and how to verify a message before trusting it.
View guides →QR Security
QR codes hide their destination until you scan them. Learn how QR code scams (quishing) work, where fake codes appear in the real world, and how to check a QR destination safely before trusting it.
View guides →Brand Scams
Real-world examples of how attackers impersonate Amazon, Apple, WhatsApp, DHL, FedEx, Microsoft, and PayPal in phishing emails, texts, and account-alert scams — and how to tell a fake message from a real one.
View guides →Job Scams
How job scams actually work: WhatsApp task-payment traps, fake LinkedIn recruiters, fake remote job listings, and interview-stage attacks — with warning signs and what to do if you've already responded.
View guides →Crypto Scams
How cryptocurrency scams actually work: fake romance-led investment platforms, pump-and-dump signal groups, wallet-draining approvals, and the recovery-service scams that target victims afterward.
View guides →Recovery
Clicked a suspicious link or entered your password on a fake site? Step-by-step guides on what to do next: securing accounts, spotting the signs of a hack, and reporting phishing.
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