Data leaks can expose passwords, personal records, and business secrets, enabling identity theft, fraud, extortion, and follow-on cyberattacks.
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Background for this topic.
Leak is the unauthorized disclosure or exposure of information to people or systems not meant to receive it. It may be deliberate or accidental and can involve personal data, credentials, API keys, source code, trade secrets, or internal documents. A leak can result from theft and publication, an employee sending data to the wrong recipient, or an exposed cloud storage bucket, database, log, repository, or backup. The term describes the exposure, not necessarily how attackers obtained it; reporting may refer to both confirmed disclosure and suspected exposure.
Security teams should establish what data was accessible, to whom, and for how long, while distinguishing evidence of access from mere exposure. Exposed passwords, tokens, and keys should be revoked or rotated quickly, and affected systems checked for reuse or further access. Personal or regulated data may trigger privacy and reporting obligations, while leaked proprietary material can require legal and threat-intelligence monitoring. Prevention includes least-privilege access, secret scanning, safe sharing controls, encryption where appropriate, and monitoring for misconfigured public resources.
The City of Columbus, Ohio, has filed a lawsuit against security researcher David Leroy Ross, aka Connor Goodwolf, accusing him of illegally downloading and disseminating data stolen from the City's IT network and leaked by the Rhysida ransomware gang. [...]
Microsoft has released the August 2024 preview update for Windows 10, version 22H2, with fixes for issues causing system freezes and memory leaks. [...]
French police reckon financial system targeted during Summer Games Nearly four weeks after the cyberattack on dozens of French national museums during the Olympic Games, the Brain Cipher ransomware group claims responsibility for the incident and says 300 GB of data will be leaked later today.…
The U.S. Marshals Service (USMS) denies its systems were breached by the Hunters International ransomware gang after being listed as a new victim on the cybercrime group's leak site on Monday. [...]
Young Consulting Says Health Data Exposed; Ransomware Group Leaked Stolen DataYoung Consulting, which develops software for the stop-loss insurance market, is notifying 1 million individuals that their personal information was stolen earlier this year in a hack attack. The BlackSuit ransomware group, a rebrand of Royal, subsequently claimed credit and leaked stolen data.
Nowadays, sensitive and critical data is traveling in everyday business channels that offer only the basic level of security and encryption, and companies are often oblivious to the risk. A case in point: Disney suffered a devastating data leak by a hacktivist group known as NullBulge that got hold of over 1.2 terabytes of data from Disney's internal Slack messaging channels. The breach exposed