Slack
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China-linked GopherWhisper infiltrates Mongolian government systems, ESET says
ESET says a China-aligned group called GopherWhisper targeted Mongolian government institutions, infecting about 12 systems and using Discord, Slack, Outlook and file.io for control and exfiltration.
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Nikkei says Slack breach exposed personal information of more than 17,000 users
Nikkei said a Slack compromise exposed names, email addresses and chat histories for 17,368 people after attackers used credentials stolen from a malware-infected employee computer; the publisher voluntarily notified Japan’s data protection regulator and said no source-related material was affected.
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Lawsuit says Deel orchestrated long-running espionage against competitor Rippling
Rippling filed a lawsuit on March 17, 2025, alleging that Deel directed a months-long corporate espionage campaign through a cultivated employee who searched Rippling systems thousands of times to capture sales, customer and recruiting information, and that top Deel executives were implicated.
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Noisy Bear Linked to Kazakh Energy Sector in Operation BarrelFire, Seqrite Says
Security researchers attribute a new campaign, Operation BarrelFire, to the Noisy Bear group, targeting Kazakhstan’s KazMunayGas with phishing lures and a DLL-based implant designed to deliver a reverse shell, amid broader regional cyberactivity and training-misinterpreted reports.
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California Hacker Pleads Guilty to Disney Data Theft
Ryan Mitchell Kramer, a California hacker, pleaded guilty to felony charges after stealing and leaking sensitive data from The Walt Disney Company. The hack raised concerns over Disney’s cybersecurity practices and the use of Slack for internal communications.
