Cactus
Security, in plain language
Short, practical guides to help you spot scams and stay safe online - for everyone, no jargon.
What is typosquatting? Look-alike domain scams explained
A zero instead of an "o", an extra word, a different ending - look-alike domains are built to catch you when you're moving fast. Here is how they work.
Read the guideHTTP security headers explained (HSTS, CSP, and more)
Invisible to visitors but vital to safety: security headers tell your browser to refuse insecure connections and block risky scripts. Here is what each one does.
Read the guideYour password was in a data breach: what to do now
A breach notification is unsettling, but the fix is straightforward. Here is exactly what to do - and how to stop it from mattering next time.
Read the guideTwo-factor authentication (2FA): what it is and why you need it
2FA is the single most effective step to protect your accounts - even if your password leaks. Here is how it works and how to set it up.
Read the guideQR code scams (quishing): how to stay safe
A QR code is just a link you cannot read with your eyes. Scammers exploit that gap. Here is how "quishing" works and how to scan safely.
Read the guideSmishing: how to spot a scam text message
Scam texts - "smishing" - are everywhere: a missed parcel, a toll you owe, a suspicious charge. Here is how to tell a fake from the real thing.
Read the guideHow to spot a fake online store
Fake online stores take your money - or your card details - and never ship a thing. Here is how to check a shop before you enter your card.
Read the guideAI voice clone and deepfake scams: what to know
"It's me, I'm in trouble, send money now." The voice sounds exactly like your child. AI made that possible. Here is how to protect yourself.
Read the guideIs public Wi-Fi safe? How to use it without getting hacked
Public Wi-Fi is not as dangerous as it used to be - but it is not risk-free. Here is what actually matters and what to do.
Read the guideHow to create a strong password
Forget "P@ssw0rd1". The strongest passwords are long, unique, and easy for you to remember. Here is how to make them.
Read the guideHow to spot a phishing email
Phishing emails try to trick you into clicking a malicious link, opening a dangerous attachment, or handing over a password. Here is how to recognize them.
Read the guideIs this link safe? How to check before you click
A single click on the wrong link can hand over a password or install malware. Here is how to check a link before you trust it.
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