Cybersecurity Brief – 2025-12-30
Major Incidents or Breaches
- Coupang, South Korea’s largest retailer, will compensate 33.7 million customers with $1.17 billion following a data breach that exposed customer information.
- Aflac suffered a data breach affecting 22 million individuals, with hackers stealing names, addresses, Social Security numbers, ID numbers, and medical/health insurance information.
- Sax, a major US accounting firm, disclosed a 2024 data breach impacting 220,000 individuals; the investigation took over a year.
- Korean Air experienced a data breach affecting thousands of employees after its in-flight catering supplier, KC&D, was hacked.
- Trust Wallet reported that attackers compromised its browser extension, draining approximately $7 million from 2,596 cryptocurrency wallets.
- Romanian energy provider Oltenia Energy Complex was hit by a Gentlemen ransomware attack, disrupting its IT infrastructure.
- A hacker claimed theft of 40 million Condé Nast records following a Wired data leak, with 2.3 million Wired subscriber records made public.
- The EmEditor website was compromised in a supply chain attack, serving a malicious installer that delivered infostealer malware.
- Over 90% of parked domains now lead users to scams or malware, a significant increase from less than 5% a decade ago.
- A Lithuanian national was arrested for distributing clipboard-stealing malware disguised as KMSAuto, infecting 2.8 million systems.
- A former Coinbase support agent was arrested in India for assisting hackers in stealing sensitive customer information from a company database.
Newly Discovered Vulnerabilities
- MongoDB vulnerability CVE-2025-14847 (“MongoBleed”) is under active exploitation, allowing unauthenticated, remote attackers to leak sensitive data. Over 87,000 potentially vulnerable instances are exposed worldwide.
- Fortinet warned that the five-year-old critical FortiOS vulnerability (CVE-2020-12812), which allows 2FA bypass, is still being actively exploited in attacks against unpatched devices.
Notable Threat Actor Activity
- The HoneyMyte APT (also known as Mustang Panda or Bronze President), linked to Chinese state actors, has evolved its tactics to use a kernel-mode rootkit for delivering and protecting the ToneShell backdoor in attacks against government organisations.
- Researchers disclosed a spear-phishing campaign that published over two dozen malicious npm packages, used as phishing infrastructure to steal login credentials.
- Chinese state-affiliated hackers are using a kernel-mode loader to hide ToneShell malware activity during cyberespionage campaigns targeting government entities.
Trends, Tools, or Tactics of Interest
- Malware in 2025 increasingly targeted platforms beyond Windows, including Android, macOS, and cross-platform environments.
- OWASP’s Agentic AI Top 10 highlights real-world attacks on autonomous AI systems, including goal hijacking and malicious MCP servers.
- Supply chain attacks remain prominent, as evidenced by the EmEditor installer compromise and malicious npm package campaigns.
- There is a significant rise in malicious use of parked domains, now serving as a major vector for scams and malware distribution.
- 2025 saw a shift from singular large incidents to widespread smaller breaches and attacks, with trusted tools being abused and old vulnerabilities resurfacing.
Regulatory or Policy Developments Affecting the Security Industry
- Debate continues over the utility of Software Bill of Materials (SBOMs), with industry experts expressing mixed views on their practical effectiveness as regulatory and compliance requirements evolve.