AICSBillions of email addresses sit in breach databases right now. AICS checks yours against every major source and tells you exactly what to do next. Free, no signup, no card.
Results cover the public-breach intelligence AICS has indexed. Some breaches stay private and may not surface — Expert Investigation goes further.
AICS goes deeper than a status check. Expert Investigation surfaces the recovered breach data — including the actual leaked passwords, usernames and other detail captured in each breach — so you know exactly which credentials to rotate first.
Included with every one-off report and membership until 30 June 2026. After that date, Expert Investigation becomes a members-only feature. We show only what is actually contained in the breach source; we never fabricate or guess values.
Start free. Upgrade for continuous monitoring, Expert Investigation and the full breach record.
Answers to common questions about how AICS works.
A data breach happens when sensitive information (email addresses, passwords, phone numbers, or financial data) is accessed, stolen, or published without authorisation. Breaches can affect anyone, from individuals to large organisations. Compromised credentials often end up for sale on dark web marketplaces within hours.
When you enter your email address, AICS queries multiple breach intelligence databases using a privacy-preserving technique called k-anonymity. Only a partial, anonymised hash of your email is sent to our data providers. Your full email address is never transmitted externally. Results come back in seconds, showing whether your email has appeared in any known breach records.
If your email was found in a breach, take action immediately: change your password on the affected service and any other account where you reused the same password, enable two-factor authentication wherever possible, and consider signing up for ongoing monitoring so you are alerted the moment your credentials appear in a new breach. Our step-by-step breach checklist walks through everything in detail. AICS membership includes automatic monthly scans, dark-web monitoring, and a phishing email analyser to keep you protected. We outline our data handling in the data protection summary and the full Privacy Policy.
Data breaches happen every day. A clean result today does not mean your data will not appear in a breach tomorrow. AICS membership continuously monitors your email across breach databases and dark web sources, sending you an instant alert if new exposure is detected, so you can act before attackers do.
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