Breach checker
Use this page when you suspect your email, workplace account or reused password may have been exposed in a breach and you need a response plan, not guesswork.
The breach checker turns a suspected exposure into a prioritized action plan covering credential rotation, MFA hardening, account review, fraud monitoring and evidence capture.
Users rarely need a raw breach headline. They need to know whether a reused password, exposed mailbox or work login creates follow-on risk across banking, cloud and identity workflows.
A breach often becomes a phishing wave, account takeover or identity-theft problem only after the first signs are ignored. This page helps prioritize the first 24-hour actions before attackers test reused credentials.
For most people the mailbox is the master recovery channel. Once an attacker can read or reset that inbox, they can pivot into banking, cloud storage, shopping accounts and even identity verification flows.
A breach response is not finished when the password changes. You still need to review sign-in history, new recovery methods, delegated access, OAuth grants and any third-party tools that still trust the old session.
The page is structured around the real phrases users search after a breach: has my email leaked, what to do after a data breach, how dangerous password reuse is and what to secure first after exposed credentials.
Breach exposure often sits upstream of phishing recovery, identity theft response and banking fraud containment. That is why this page links naturally into the recovery center, URL checker and identity theft planner instead of living as a standalone checker.
This page is structured to answer this urgent user question with practical steps, tool output and related recovery workflows already visible in server-rendered HTML.
This page is structured to answer this urgent user question with practical steps, tool output and related recovery workflows already visible in server-rendered HTML.
This page is structured to answer this urgent user question with practical steps, tool output and related recovery workflows already visible in server-rendered HTML.
This page is structured to answer this urgent user question with practical steps, tool output and related recovery workflows already visible in server-rendered HTML.
This page is structured to answer this urgent user question with practical steps, tool output and related recovery workflows already visible in server-rendered HTML.
Official guidance or recovery documentation that supports the containment and next-step workflow on this page.
Open referenceOfficial guidance or recovery documentation that supports the containment and next-step workflow on this page.
Open referenceOfficial guidance or recovery documentation that supports the containment and next-step workflow on this page.
Open referenceChange the password anywhere it was reused, enable MFA and review recent sign-ins or security alerts for the impacted mailbox and connected accounts.
Because attackers usually test leaked credentials across major providers, banking logins and cloud accounts. Reuse turns one breach into many possible compromises.
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