Mozilla inadvertently publishes thousands of user IDs
Firefox developer Mozilla has revealed this week that a database containing usernames and password hashes belonging to thousands of users of addons.mozilla.org had been posted publicly by accident.
44,000 user IDs and password hashes were revealed in the accidental disclosure. Mozilla's security team has already contacted all those potentially affected via email.
The weakness of the MD5 hash
Sophos explains how Mozilla stored passwords set before April 9th, 2009 as MD5 hashes – which has cryptographic weaknesses that could allow security experts to still determine your password and access your account.
Since April 9, 2009, Mozilla has used the far more secure SHA-512 with per-user salts to store password hashes.
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