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An expensive mistake: Someone jumped at the opportunity to steal $4.4 million in crypto assets after South Korea’s National Tax Service exposed publicly the mnemonic recovery phrase of a seized cryptocurrency wallet. The funds were stored in a Ledger cold wallet seized in law enforcement raids at 124 high-value tax evaders that resulted in confiscating digital assets worth 8.1 billion won (currently approximately $5.6 million). When announcing the success of the operation, the agency released photos of a Ledger device, a popular hardware wallet for crypto storage and management. However, the images also showed a handwritten note of the wallet recovery phrase, which serves as the master key that allows restoring the assets to another device. The authorities failed to redact that info, allowing anyone to transfer into their account the assets in the cold wallet. Reportedly, shortly after the press release was published, 4 million Pre-Retogeum (PRTG) tokens, worth approximately $4.8 million at the time, were transferred out of the confiscated wallet to a new address.

Some of these campaigns are linked to Darcula, a Chinese-language phishing-as-a-service platform

CrackArmor AppArmor flaws let local Linux users gain root, break containers and enable DoS attacks

DNS-based attack in AWS Bedrock AgentCore lets AI sandboxes exfiltrate cloud data

The FBI wants to hear from gamers who have downloaded Steam titles containing malware

An issue with the Companies House website has put the personal and corporate information of millions at risk

I’m skeptical about—and not qualified to review—this new result in factorization with a quantum computer, but if it’s true it’s a theoretical improvement in the speed of factoring large numbers with a quantum computer.

A new law enforcement operation against phishing and ransomware operators led to the takedown of 45,000 malicious IP addresses

Operation Lightning sees international law enforcement partners shut down ‘SocksEscort,’ a major malicious proxy service used by cybercriminals worldwide

PixRevolution Android trojan hijacks Brazil’s PIX payments in real time using accessibility abuse

The critical vulnerability affecting both cloud and self-hosted n8n instances requires no authentication or even n8n account to be exploited

CISA issued urgent directive as attackers exploit Cisco SD-WAN flaw granting admin access to networks

The ICO has fined Police Scotland after it shared the entire contents of a victim’s phone with her alleged attacker

The pro-Iran Handala group claims to have wiped 200,000 systems in destructive wiper malware attack on US firm Stryker

French small and medium businesses remained the organizations most targeted by ransomware in 2025

Infosecurity Europe 2026 reveals its keynote line-up, featuring Jason Fox, Shlomo Kramer, Cynthia Kaiser and more, with sessions on AI, cloud security and post quantum threats

LeakyLooker flaws in Google Looker Studio let attackers run cross-tenant SQL attacks on cloud data

Over 250 legitimate websites, including news outlets and a US Senate candidate’s official webpage, been compromised to infect visitors with infostealers, warn Rapid7 researchers

BlackSanta malware targets HR staff with fake resumes, kills EDR and steals system data

Palo Alto Networks’ Unit 42 has developed a successful attack to bypass safety guardrails in popular generative AI tools