
CISA Confirms US Treasury Department as Only Federal Agency Impacted by BeyondTrust Breach
The Cybersecurity and Infrastructure Security Agency (CISA) confirmed on January 7, 2025, that the US Treasury Department was the only federal agency impacted by a significant data breach attributed to Chinese government-backed hackers. The incident, which came to light in December 2024, involved the exploitation of a compromised cloud service provided by BeyondTrust.
Signal context
First seen: Jan 7, 2025
Last updated: Jul 1, 2026
Status: Public signal
Key points
- Chinese government-backed hackers (APT group) attributed to the breach.
- Exploitation of a compromised BeyondTrust cloud service (CVE-2024-12686 and CVE-2024-12356).
- Attackers gained unauthorized access to a stolen Remote Support SaaS API key.
Signal analysis
BetaThis analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.
Sector: Public Administration
Likely country: 🇺🇸 United States
inferred from company domain
Watch internet-facing systems, credential abuse and exploit activity.
- Source type: outside the affected organization
Impact area: Confidentiality
Likely asset: User or customer data, Server or cloud data store
- 1 signal in the same sector
- 88 signals with the same likely impact area
- 1 signal linked to this organization/domain
External sources
January 2025: Recent Cyber Attacks, Data Breaches, Ransomware Attackshttps://www.cybersecurity-insiders.com/january-2025-recent-cyber-attacks-data-breaches-ransomware-attacks/Public source from cybersecurity-insiders.com.
January 2025 Data Breaches [LIST] - Pomeriumhttps://www.pomerium.com/blog/january-2025-data-breaches-listPublic source from pomerium.com.
Related signals
Grouped by why the signal is relevant.
CTIVD: AIVD en MIVD verwerken persoonsgegevens in bulkdata onrechtmatig
The Dutch intelligence services, AIVD and MIVD, have unlawfully processed personal data in bulk datasets, according to a ruling by the Committee for the Supervision of the Intelligence and Security Services (CTIVD). The report, published on July 1, 2026, states that groups of employees had unauthorized access to personal data, and large quantities of data were stored for too long. The bulk datasets, sometimes containing millions of records, include names, phone numbers, location data, social media data, and communication content, sourced from government agencies, commercially available datasets, or stolen datasets offered by criminals. The CTIVD has issued thirteen recommendations to improve the situation.
Aflac Life Insurance Japan Suffers Cybersecurity Breach Exposing Policyholder Data
Aflac Life Insurance Japan disclosed unauthorized access to its systems between June 15 and June 25, 2026. The breach affected files containing policy details, personal information, and bank account information of approximately 4.38 million customers. The company has suspended affected systems and is investigating the incident with third-party cybersecurity experts.
Polymarket Confirms Supply Chain Attack, $3 Million Stolen
Polymarket, a cryptocurrency-based prediction market, confirmed a supply chain attack. A breach of a third-party frontend vendor led to malicious JavaScript being injected into its website. Attackers tricked users into approving fraudulent transactions, resulting in approximately $3 million being stolen from fewer than 15 accounts. The backend systems remained unaffected.
National Association of Insurance Commissioners (NAIC) Confirms Data Breach via Oracle PeopleSoft Zero-Day
The National Association of Insurance Commissioners (NAIC), a US insurance regulatory standards body, confirmed a cyberattack after the ShinyHunters group claimed theft of 3.1TB of data. The breach was reportedly achieved through an Oracle PeopleSoft zero-day vulnerability. ShinyHunters claimed access to regulatory filings, production logs, cloud configuration files, and other internal records.
Chubu Telecommunications C., Inc. Affected by KDDI Corporation Data Breach
Chubu Telecommunications C., Inc., a Japanese internet service provider, was impacted by a data breach originating from an email system provided by KDDI Corporation. Threat actors gained unauthorized access to this shared system by exploiting a vulnerability in third-party software. This led to the potential exposure of up to 14.2 million email addresses and passwords across all affected ISPs. Chubu Telecommunications customers' email addresses and passwords may have been compromised.
BIGLOBE Inc. Affected by KDDI Corporation Data Breach
BIGLOBE Inc., a Japanese internet service provider, was impacted by a data breach originating from an email system provided by KDDI Corporation. Threat actors gained unauthorized access to this shared system by exploiting a vulnerability in third-party software. This led to the potential exposure of up to 14.2 million email addresses and passwords across all affected ISPs. BIGLOBE Inc. customers' email addresses and passwords may have been compromised.
