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America's Food Basket
September 3, 2026
America's Food Basket, a cooperative of independent grocery stores in New York and other eastern states, was listed on the Wallstreet ransomware group's leak site on September 3, 2026 as a data theft victim. The company had not confirmed the claim as of late September 2026.
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Florida Department of Highway Safety and Motor Vehicles
September 4, 2026
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[ hack, leak, government ]
FLHSMV discovered unauthorized access to its DAVID database on September 4, 2026, through compromised credentials belonging to one Plant City police employee. September 4 is a discovery proxy; ShinyHunters' claimed September 3 collection start was not independently confirmed. The group claimed responsibility and later released an archive inspected by Straight Arrow News. The agency did not publicly verify the named operator or its advertised victim count. No encryption or operational disruption was established.
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Healing Paper
September 4, 2026
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[ hack, healthcare, technology ]
Healing Paper, the Seoul-based operator of cosmetic-surgery platform Gangnam Unni, said an unidentified attacker abused its consultation-records API on Sept 4, 2026, exposing data of 219,665 users in Korea, Japan and Taiwan. It blocked the route and notified users.
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Undisclosed South Korean automotive and media organizations
September 4, 2026
Rapid7 reported Sept. 2026 that North Korea-linked hackers breached two South Korean automotive and media organizations via an edge server, planting a backdoor in their HAProxy load balancer and an SSH keylogger for long-term spying on traffic and credentials.
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Blanco & Etcheverry
September 4, 2026
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[ ransomware, leak ]
Gunra ransomware added Montevideo law firm Blanco & Etcheverry to its leak site on Sept. 4, 2026, claiming to have leaked 300 GB of data. The firm has not confirmed the attack or commented.
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DriveWealth
September 4, 2026
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[ social, finance, technology ]
Jersey City, N.J., brokerage DriveWealth said unknown attackers using social engineering accessed its network on Sept. 4-5, 2026, and took retained personal data of customers of partner apps Revolut, Stake and Hatch. No trades were affected; customers were notified.
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HBO Max (Warner Bros. Discovery) official Reddit account
September 6, 2026
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[ hack, malware, social ]
An unauthorized operator took over verified Reddit account u/hbomax and ran 108 deceptive paid advertisements over about 48 hours. Links impersonated HBO Max and software products and directed users to ClickFix command-pasting instructions that delivered malware. The malicious advertisements were paused after they were reported.
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Liquid Network
September 6, 2026
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[ hack, financial, technology ]
Hackers exploited a bug in Liquid Network, the Blockstream-developed Bitcoin sidechain, on Sept. 6, 2026 to mint unbacked L-BTC and withdraw ~4,000 BTC ($320M) from its federation wallet. Liquid halted the network; self-described white hats returned 3,400 BTC.
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Association Francophone de Tennis de Table
September 7, 2026
Belgian table tennis federation AFTT confirmed a cyberattack in Sept. 2026 after a hacker claimed 1.69 GB of data on about 66,852 members and 17,441 users and posted samples. AFTT said it found no sign phone numbers or emails were taken and that most data was already public.
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Undisclosed organizations
September 7, 2026
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[ phishing, technology ]
CloudSEK found that BigBear 2.0, a phishing-as-a-service operation using adversary-in-the-middle login pages, captured over 5,000 Microsoft 365 credentials and session cookies and bypassed MFA at 258 organizations in 40+ countries. Operators remain unidentified.
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Undisclosed Philippine nuclear research agency
September 8, 2026
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[ espionage, leak, government ]
A suspected Chinese-speaking operator exploited an ownCloud authentication weakness and stole 176 files totaling about 372 MB from a Philippine nuclear research agency. The stolen material was already present on attacker-controlled infrastructure when researchers discovered it on 13 August 2026; the exact theft date is not established, so event_date uses the supplied source publication date.
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National Directorate of Cyber Security (DNSC)
September 8, 2026
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[ ddos, government, technology ]
Attackers launched approximately 2.8 million access requests against dnsc.ro at around 17:00 on 8 September 2026. About 50,000 requests passed DNSC's technical filters and overloaded the website, causing an interruption lasting less than 30 minutes. DNSC director Dan Cmpean said the attackers sought reputational impact by demonstrating vulnerability and undermining public and partner confidence. The specific group and its country of origin were not attributed.
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Undisclosed healthcare organization
September 8, 2026
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[ hack, healthcare, technology ]
Google's Mandiant reported that a data extortion group breached an unnamed healthcare organization and stole drug research, corporate data and a proprietary AI model, then threatened to publish it unless paid. Disclosed in GTIG's Q2 2026 AI Threat Tracker.
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Undisclosed AI media generation company
September 8, 2026
Google's Mandiant reported that attackers compromised an unnamed AI media generation company, stole its source code, prompts, skills, model scripts and secrets, and demanded payment under threat of publishing them. Disclosed in GTIG's Q2 2026 AI Threat Tracker.
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Hilltop National Bank
September 8, 2026
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[ finance, hack ]
Hilltop National Bank, a Casper, Wyoming community bank, had IT disruptions from Sept. 8, 2026, then identified a cybersecurity incident, took internal systems offline and closed all branches Sept. 9. Online banking was out until about Sept. 22. Cause and actor undisclosed.
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Undisclosed enterprise company investigated by Unit 42
September 9, 2026
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[ hack, technology ]
A human ransom attacker used multiple frontier AI agents to compromise an undisclosed enterprise network in less than 10 hours. The agents extracted credentials and cloud keys from code repositories, a secrets-management system and other enterprise applications, allowing expansion into cloud and identity infrastructure. An attempted Terraform backdoor was blocked. Unit 42 clarified that the incident was an intrusion rather than a ransomware attack. The exact intrusion date, victim industry and victim country were not disclosed; event_date therefore uses the supplied source publication date.
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Brevo (formerly Sendinblue)
September 9, 2026
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[ hack, technology, finance ]
On September 9-10, 2026, an intruder abused a flaw in Brevo SAML SSO tenant scoping to access 138 customer accounts. The attacker used six of the accounts to distribute fraudulent messages from legitimate customer email channels and exported contacts from 43 accounts. Trezor was one affected Brevo customer; 347,149 newsletter email addresses were exported and misleading messages reached roughly 347,000 subscribers. Brevo shut the attack route and signed out sessions on September 10. The attack did not establish a breach of Trezor wallet infrastructure. The 138 customer accounts are effects within one compromised Brevo platform, not separate CED records.
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Air Canada
September 9, 2026
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[ ransomware, leak, technology ]
The Gentlemen ransomware group listed Montreal-based Air Canada on its leak site on Sept 9, 2026, claiming to have stolen 51,409 'critical files'. A dataset of about 489,000 mostly email records was later indexed; Air Canada has not confirmed it; no disruption was reported.
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Surfshark
September 9, 2026
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[ misconfiguration, technology, leak ]
VPN provider Surfshark (Netherlands) disclosed on Sep 9, 2026 that a threat actor accessed a misconfigured, internet-exposed internal test server holding engineering material and an isolated proxy server. Detected Aug 31; Surfshark says no user data or VPN services were affected.
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Undisclosed organizations
September 9, 2026
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[ ransomware, espionage, technology ]
Cisco Talos disclosed on 9 Sep 2026 that three clusters exploited Cisco Secure FMC flaws at unnamed organizations: a Qilin-linked affiliate stole data and deployed Qilin ransomware, Sandworm-linked UAT-11823 harvested firewall configurations, and UAT-12197 stole credentials.
