Theft in cybersecurity covers stolen data, credentials, devices, and funds, often creating risks of unauthorized access, fraud, and privacy loss.
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Background for this topic.
Unauthorized taking or copying of information, credentials, intellectual property, or digital assets is cyber theft. News under this tag may involve stolen passwords, payment data, personal information, source code, cloud tokens, cryptocurrency, or sensitive business files. Theft can result from phishing, malware, compromised accounts, insider access, exposed storage, or the loss of an unencrypted device; the relevant issue is the unauthorized acquisition or control of an asset, whether or not the attacker also alters systems.
Security teams should identify where valuable data and credentials are stored, restrict access by role, require strong authentication, encrypt data at rest and in transit, and monitor unusual downloads or transfers. Vulnerability management matters when flaws expose databases, endpoints, or cloud services to unauthorized retrieval. After suspected theft, preserving logs, revoking tokens and credentials, determining what was accessed or copied, and assessing privacy or notification obligations are central to containing the incident and measuring its impact.
U.S. tax resolution firm Optima Tax Relief suffered a Chaos ransomware attack, with the threat actors now leaking data stolen from the company. [...]
The Interlock ransomware gang has claimed a recent cyberattack on the Kettering Health healthcare network and leaked data allegedly stolen from breached systems. [...]
Earlier today, law enforcement seized multiple domains of BidenCash, the infamous dark web market for stolen credit cards, personal information, and SSH access. [...]
The FBI is warning about a new scam where cybercriminals exploit NFT airdrops on the Hedera Hashgraph network to steal crypto from cryptocurrency wallets. [...]
Publishing giant Lee Enterprises is notifying over 39,000 people whose personal information was stolen in a February 2025 ransomware attack. [...]
Google has observed hackers claiming to be the ShinyHunters extortion group conducting social engineering attacks against multi-national companies to steal data from organizations' Salesforce platforms. [...]
A recently disclosed data breach at Coinbase has been linked to India-based customer support representatives from outsourcing firm TaskUs, who threat actors bribed to steal data from the crypto exchange. [...]
Two malicious RubyGems packages posing as popular Fastlane CI/CD plugins redirect Telegram API requests to attacker-controlled servers to intercept and steal data. [...]
Outdoor apparel retailer The North Face is warning customers that their personal information was stolen in credential stuffing attacks targeting the company's website in April. [...]
The "Russian Market" cybercrime marketplace has emerged as one of the most popular platforms for buying and selling credentials stolen by information stealer malware. [...]