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The Week in Cyber Security and Data Privacy: 26 February – 3 March 2024

IT Governance

Only 5 definitely haven’t had data breached. Publicly disclosed data breaches and cyber attacks: full list This week, we found 252,796,762 records known to be compromised, and 126 organisations suffering a newly disclosed incident. 110 of them are known to have had data exfiltrated, exposed or otherwise breached.

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Understanding Have I Been Pwned's Use of SHA-1 and k-Anonymity

Troy Hunt

Four and a half years ago now, I rolled out version 2 of HIBP's Pwned Passwords that implemented a really cool k-anonymity model courtesy of the brains at Cloudflare. Yet from time to time, I get messages along the lines of this: Why are you using SHA-1? However, what if you could manufacture a hash collision?

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