Knowledge base
Data breach guides
Practical, vendor-neutral explainers on how breaches and credential leaks work — and how to check and reduce your exposure.
All guides
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What is a data breach? Types, causes and consequences
A data breach is any unauthorised access to data. Here’s how they happen, what gets exposed, and why leaked credentials cause the most damage.
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Credential stuffing: how one leaked password becomes account takeover
Attackers don’t guess passwords — they replay leaked ones. Here’s how credential stuffing turns an old breach into a hijacked account.
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What to do after a data breach: a step-by-step response
Found out you’re in a breach? Here’s the order to act in — from the leaked password to monitoring for what comes next.
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