Unleash Protocol
December 26, 2025
•[ Theft, Cryptocurrency, Smart Contract Exploit ]
Unauthorized multisig takeover allowed attacker to deploy a malicious contract upgrade and drain protocol funds, which were later laundered through Tornado Cash.
Kamunikat.org
December 25, 2025
•[ unauthorized access, data destruction ]
An attacker obtained administrator-level access to Kamunikat.org and deleted several thousand publications and news items from the online library before access was blocked and restoration began.
At least one Russian Manufacturing Company
December 22, 2025
•[ unauthorized access, industrial operations ]
A manufacturing company based in Russia was affected by a cyber incident involving unauthorized access to corporate systems and potential disruption to industrial operations.
At least one organization in the energy sector
December 16, 2025
•[ energy sector, unauthorized access, operational disruption ]
An organization operating in the energy sector was targeted by cyber activity that sought to access or interfere with systems supporting energy operations.
Dainichiseika Color & Chemicals Mfg. (Vietnam subsidiary)
December 15, 2025
•[ ransomware, unauthorized access, data leak ]
Dainichiseika Color & Chemicals Manufacturing reported that its consolidated subsidiary in Vietnam (DAINICHI COLOR VIETNAM CO., LTD.) suffered unauthorized access that resulted in ransomware infection of internal servers and related systems. On December 15, 2025, the company confirmed that files on servers and PCs had been encrypted and rendered unreadable, consistent with a ransomware data attack. Affected devices were disconnected from internal networks and the internet to prevent spread, and IT specialists were dispatched to support recovery and forensic analysis. The company stated that key subsidiary operations such as manufacturing and shipping continued as usual and that the extent of information leakage, if any, was still being assessed.
French Football Federation (FFF)
November 22, 2025
•[ data leak, unauthorized access ]
The French Football Federation disclosed that an unauthorized party accessed administrative software on November 22 and exfiltrated personal and membership information for registered members; no operational disruption or actor attribution was identified.
Harvard University
November 18, 2025
•[ phishing, vishing, data leak ]
Harvard University reported that a voice-phishing attack against Alumni Affairs and Development staff on November 18, 2025 led to unauthorized access to its AAD information systems, exposing contact details, fundraising records and event data for alumni, donors, parents, some students and some faculty and staff; the university locked out the intruder, notified affected individuals beginning November 22, and is working with law enforcement and incident response specialists.
Checkout.com
November 6, 2025
•[ extortion, unauthorized access, data leak ]
Checkout.com reported that an extortion actor accessed a legacy cloud file storage system and claimed to have obtained data; the company confirmed unauthorized access but no operational disruption or verified data theft.
Windsor International Airport
October 14, 2025
•[ hacktivism, unauthorized access, third-party breach ]
Unauthorized pro-Palestinian messages played; one Delta flight delayed; third-party cloud PA cited
Personic Management Company LLC
August 29, 2025
•[ data leak, unauthorized access, third-party breach ]
Personic reported unauthorized activity affecting a third-party software platform it used to process patient information. The company stated it became aware of the issue on September 1, 2025, and an investigation concluded an unauthorized actor accessed the platform on August 29, 2025 and obtained certain data. The public notice stated the impacted data may include names and protected health information. Personic reported filing a notice with the Maine Attorney Generals office and beginning notification of impacted individuals on November 18, 2025.
Saint Mary’s Home of Erie
August 26, 2025
•[ data leak, unauthorized access ]
A forensic investigation found that an unauthorized party accessed the Saint Marys Home of Erie network between August 26 and 28, 2025. Files and folders containing resident PII and PHI may have been exposed. The incident was reported to HHS OCR for at least 501 individuals while review continues.
National prison management platform of the National Penitentiary Administration (ANP)
August 1, 2025
•[ insider threat, financial fraud, unauthorized access ]
A prisoner in the Dej hospital prison hacked tablet/kiosk systems used to access the national inmate-services portal, manipulating requests and financial accounts tied to commissary and sentence-credit workflows. Activity persisted for weeks across multiple institutions before detection; the union and national media detail platform misuse and credential abuse rather than broad IT outages.
Wiley Rein LLP
July 12, 2025
•[ espionage, unauthorized access, state-sponsored attack ]
Firm notified clients that Microsoft 365 accounts of certain personnel were accessed in an apparent intelligence-gathering operation; suspected China-affiliated group.
Healthcare Interactive Inc. (HCIactive)
July 12, 2025
•[ data leak, unauthorized access ]
Healthcare Interactive Inc. (HCIactive), a benefits and insurance administration technology provider, disclosed that an unauthorized actor accessed its network and copied certain files between July 8 and July 12, 2025. Suspicious activity was detected on July 22, triggering a forensic investigation that confirmed a data breach affecting at least 501 individuals, with exposed information including names, addresses, dates of birth, Social Security numbers, contact details, and health insurance enrollment data. The company notified regulators and consumers beginning in September 2025, offered credit monitoring, and stated that it had implemented additional technical safeguards. There is no indication of significant operational disruption, but the confidentiality impact for affected individuals is substantial.
Khan & Associates CPA, Inc.
July 9, 2025
•[ unauthorized access, data leak ]
An unauthorized user accessed Khan & Associates CPAs Intuit tax filing software between July 916 2025, filing false federal and state tax returns and exposing clients PII including SSNs and bank data.
C&M Software (service provider to Banco Central ecosystem)
July 2, 2025
•[ insider threat, compromised credentials, financial theft ]
Attackers allegedly bought an employee's credentials for ~$2,700 to access C&M systems and steal BRL 800M from connected institutions; part converted to crypto and laundered.
Pulse Urgent Care Center
July 1, 2025
•[ data leak, unauthorized access, healthcare ]
Unauthorized access to Pulse Urgent Care Centers network exposed patient PHI; no encryption or quantitative scope reported and threat actor unconfirmed.
Hawaiian Airlines
June 23, 2025
•[ unauthorized access, data breach, threat actor attribution ]
On June 23 2025, Hawaiian Airlines detected unauthorized access affecting certain IT systems; flights and safety operations were unaffected. The company reported the breach in an SEC 8-K filing and began investigation with external experts and the FBI. No confirmed data-theft volume or ransom demand disclosed; security researchers suspect the Scattered Spider threat group, but attribution remains unconfirmed.
Vice Ministry of Economy (Paraguay) et al.
June 14, 2025
•[ hacktivism, website defacement, unauthorized access ]
Hacktivist group CyberTeam launched coordinated website intrusions against Paraguayan government institutions, defacing and accessing official systems while denouncing national cybersecurity as ineffective; the Ministry of Economy confirmed limited unauthorized access but no data leak.
McElroy & Associates, Inc.
May 28, 2025
•[ data leak, unauthorized access, HIPAA ]
McElroy & Associates, Inc., a professional services firm operating as a HIPAA-covered healthcare business associate, disclosed unauthorized access to an employee email account occurring between May 28 and May 30, 2025. A forensic investigation determined that personal and protected health information may have been exposed. The company notified affected individuals and regulators; no operational disruption was publicly reported.
