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Slack Resets Passwords After a Bug Exposed Hashed Passwords for Some Users

Slack Resets Passwords After a Bug Exposed Hashed Passwords for Some Users

Aug 06, 2022
Slack said it took the step of resetting passwords for about 0.5% of its users after a flaw exposed salted password hashes when creating or revoking shared invitation links for workspaces. "When a user performed either of these actions, Slack transmitted a hashed version of their password to other workspace members," the enterprise communication and collaboration platform  said  in an alert on 4th August. Hashing refers to a cryptographic technique that transforms any form of data into a fixed-size output (called a hash value or simply hash).  Salting  is designed to add an extra security layer to the hashing process to make it resistant to brute-force attempts. The Salesforce-owned company, which reported more than  12 million daily active users  in September 2019, didn't reveal the exact  hashing algorithm  used to safeguard the passwords. The bug is said to have impacted all users who created or revoked shared invitation links between 17 April 2017 and 17 July 20
Slack Resets Passwords For Users Who Hadn't Changed It Since 2015 Breach

Slack Resets Passwords For Users Who Hadn't Changed It Since 2015 Breach

Jul 18, 2019
If you use Slack, a popular cloud-based team collaboration server, and recently received an email from the company about a security incident, don't panic and read this article before taking any action. Slack has been sending a "password reset" notification email to all those users who had not yet changed passwords for their Slack accounts since 2015 when the company suffered a massive data breach. For those unaware, in 2015, hackers unauthorisedly gained access to one of the company's databases that stored user profile information, including their usernames, email addresses, and hashed passwords. At that time, attackers also secretly inserted code, probably on the login page, which allowed them to capture plaintext passwords entered by some Slack users during that time. However, immediately following the security incident, the company automatically reset passwords for those small number of Slack users whose plaintext passwords were exposed, but asked other aff
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