When companies are breached, criminals use stolen data to craft more convincing phishing attacks.
Why Breached Data Is Dangerous
Attackers may have:
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Your email
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Past passwords
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Address or phone number
This makes phishing emails feel personal.
Protection Steps
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Change breached passwords
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Use unique passwords
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Monitor for suspicious emails
For a full breakdown of how phishing works and how to protect yourself end-to-end, read our Email Phishing: Complete Guide to Prevention (2026).
Related guides
- Email Phishing: Complete Guide to Prevention (2026). The phishing pillar this article feeds into
- How to Check If Your Email Has Been Hacked. Start here if you're not sure whether you're already in a breach
- How to Create Strong Passwords (14+ Characters). Limits the blast radius when a breach reuses your password
- How to Tell If an Email Is Phishing (10 Red Flags). The personalised phishing that follows a breach still hits these tells
- Identity Protection Guide (2026): Prevent Identity Theft. The fuller picture on breach → phishing → identity theft
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