Find what you’re looking for
Browse everything
6,838 results in Threat Reports
Sotheby's 2025 Data Breach: When Sensitive Customer Information Goes Public
In July 2025, Sotheby's, a leading global auction house, suffered a significant data breach in which threat actors exfiltrated sensitive customer data. Discovered on July 24, the breach resulted in the exposure of customers' full names, Social Security numbers, and financial account information. An internal investigation spanned two months, determining the scale and nature of the data affected and the impacted individuals, which included Maine and Rhode Island residents. While the number of victims remains undisclosed, Sotheby's began notifying those affected and offered complimentary identity protection and credit monitoring. No ransomware group has publicly claimed responsibility, and the attack’s vector remains unknown, but similar institutions have faced ransomware- and data-theft-related intrusions in recent years. This incident underscores the rising frequency and impact of data breaches targeting well-known, high-value companies, particularly those handling sensitive customer and financial information. It highlights pressing concerns around regulatory compliance, the need for comprehensive incident detection and response, and growing regulatory scrutiny of data protection practices in sectors beyond traditional financial services.
Nation-State Breach of F5 Sparks CISA Emergency Directive for Federal Agencies
In mid-2024, F5 Networks disclosed that a sophisticated nation-state attacker gained prolonged, unauthorized access to its internal systems, compromising BIG-IP source code and undisclosed vulnerability details. The breach, detected in August, prompted the US Cybersecurity and Infrastructure Security Agency (CISA) to issue an emergency directive compelling federal agencies to immediately identify, patch, or disconnect thousands of F5 products in their environments. While no direct federal compromises have been reported yet, the theft of sensitive product and security information could facilitate widespread exploitation across both federal agencies and private organizations relying on F5 systems. This incident underscores heightened risks to supply chain integrity and critical infrastructure posed by persistent nation-state campaigns. With attackers targeting widely deployed technology vendors, government and industry face urgent pressure to enhance monitoring, rapid patching, and zero trust defenses to mitigate risks from downstream exploitation of software supply chains.
Inside the Largest U.S. School Data Breach: PowerSchool’s 2024 Ransomware Attack
In September 2024, PowerSchool, a leading education software provider, suffered a devastating ransomware attack orchestrated by Matthew Lane, who used compromised contractor credentials to access and exfiltrate sensitive records. Nearly 70 million student and teacher records were stolen, with the data held hostage for a $2.9 million ransom, which was ultimately paid. The breach led to subsequent extortion attempts on multiple school districts and resulted in over $14 million of financial losses and lifetime risks of identity theft for millions of affected individuals. Lane was sentenced in October 2024 to four years in prison, three years supervised release, and over $14 million in restitution. This incident highlights the urgency of addressing third-party risks, as threat actors increasingly exploit supply chain weaknesses to orchestrate high-impact ransomware attacks. Regulatory scrutiny and ransomware activity targeting the education sector continue to rise, underscoring the need for robust zero trust, lateral movement prevention, and data protection strategies.
F5 2025 Breach: Nation-State Attackers Target BIG-IP Source Code
In August 2025, cybersecurity giant F5 detected a sophisticated breach by nation-state hackers who gained unauthorized access to its BIG-IP product development environment and engineering knowledge management platforms. Over an extended period, attackers exfiltrated undisclosed BIG-IP vulnerabilities, product source code, and select customer configuration information. F5 asserts no evidence that the attackers modified software, exploited the stolen vulnerabilities in active attacks, or that critical customer data was exposed. Response actions included credential rotations, hardening of development environments, enhanced threat detection, and external code audits by firms such as CrowdStrike, Mandiant, NCC Group, and IOActive. F5 also proactively issued security updates and guidance to impacted customers. This incident underscores the growing trend of sophisticated, supply-chain-oriented intrusions targeting technology providers with a wide enterprise customer base. It illustrates the strategic value of source code and zero-day exploits to well-resourced threat actors, and raises ongoing concerns about the security of key software infrastructure used widely across industries.
Microsoft Windows Server 2025 Update Breaks Active Directory Sync
In September 2025, Microsoft’s security updates for Windows Server 2025 triggered Active Directory (AD) Domain Services synchronization issues, specifically affecting environments with large AD security groups exceeding 10,000 members. The incident, stemming from update KB5065426, disrupted vital processes like Microsoft Entra Connect Sync, resulting in incomplete directory synchronization. Microsoft quickly acknowledged the bug, issued a temporary registry-based workaround, and warned that improper registry modifications carried significant risks. The root cause is connected to directory synchronization controls that do not yet officially support Windows Server 2025. This event highlights the increasing operational risk organizations face from software update regressions affecting core identity infrastructure. In an era of widespread cloud adoption and hybrid identity services, such failures can severely impact business continuity and compliance, amplifying the urgency for robust change management and pre-deployment validation.
MANGO Data Breach 2024: Third-Party Vendor Incident Exposes Customer Data
In April 2024, Spanish fashion retailer MANGO reported that a data breach exposed customer personal information after one of its marketing vendors was compromised. The incident came to light when MANGO began notifying affected customers, stating that data such as names, contact details, and potentially other identifiers had been accessed without authorization. The intrusion was possible due to attackers breaching the marketing service provider’s environment, reflecting a concerning third-party risk. MANGO responded by collaborating with the vendor, investigating the incident, notifying authorities, and reinforcing security controls. This breach underscores a growing trend in supply-chain attacks where threat actors exploit weaker security in trusted partners. It highlights the urgent need for stringent vendor management, robust segmentation, and continuous monitoring, especially as regulatory focus intensifies on safeguarding consumer data throughout the supply chain.
F5 2025 Supply Chain Breach: BIG-IP Vulnerabilities Exposed by State Hackers
In August 2025, cybersecurity company F5 detected a sophisticated supply chain attack resulting in the theft of source code and undisclosed vulnerabilities affecting its flagship BIG-IP products. The breach, attributed to state-sponsored hackers, did not lead to immediate exploitation but exposed potentially critical flaws. F5 responded by rapidly developing and releasing security patches for 44 vulnerabilities, proactively urging its global clientele—including many Fortune 500 companies and federal agencies—to update systems and implement enhanced monitoring. No evidence was found of modifications to the supply chain or active use of the stolen information as of disclosure. This incident highlights mounting concerns around supply chain security and zero-day vulnerability exposure, particularly within critical infrastructure and cloud environments. The breach also triggered regulatory intervention, with CISA issuing emergency directives for federal agencies, underscoring rising government attention to third-party risks and broader cybersecurity resilience in the face of advanced persistent threats.
Fake LastPass & Bitwarden Breach Alerts: Phishing Attack Delivers Malware (2024)
In early June 2024, a sophisticated phishing campaign targeted users of password managers LastPass and Bitwarden. Attackers sent convincing emails, falsely claiming that the services had suffered security breaches and instructing recipients to download a new, supposedly more secure, desktop version. The malicious download actually installed malware, enabling attackers to hijack compromised PCs and potentially steal credentials or other sensitive data. Victims who downloaded the fake app were exposed to significant risks, including credential theft and remote control of their systems. This incident highlights escalating use of credible brand impersonation and urgent alert tactics by cybercriminals. The campaign underscores the vulnerabilities associated with password manager users and demonstrates the growing threat landscape for identity-driven and social engineering attacks.
Capita Hit by Black Basta Ransomware: 6.6 Million Impacted in 2023 Breach
In March 2023, UK outsourcing giant Capita suffered a major data breach after an employee downloaded a malicious file, giving threat actors access to internal systems. The Black Basta ransomware gang exploited delayed response and weak access controls to maintain persistence for 58 hours, move laterally, and exfiltrate nearly a terabyte of sensitive data covering 6.6 million individuals, including customers of over 325 pension providers. The attackers deployed ransomware, resetting passwords and disrupting access, forcing Capita to take some systems offline and ultimately resulting in a £14 million regulatory fine after failing to meet key security requirements. This breach highlights the growing menace of ransomware operations targeting supply chain and service providers, with regulatory authorities emphasizing rapid response, robust access controls, and continuous security testing. Organizations face increased scrutiny to maintain strong cybersecurity baselines as attackers evolve tactics and exploit internal weaknesses.
Maverick: How WhatsApp Became the Gateway for Brazil’s Biggest Banking Trojan in 2024
In October 2024, a sophisticated banking Trojan dubbed Maverick was detected actively targeting Brazilian users. The malware was delivered via malicious ZIP files sent through WhatsApp, bypassing platform detection. Victims executed an LNK file that triggered a fully fileless, multi-stage infection chain, utilizing PowerShell, .NET, and encrypted shellcode. Maverick, which shares code similarities with the Coyote Trojan, leverages locale checks to target only Brazilians and uses WPPConnect to automate the spread through hijacked WhatsApp accounts. Once established, the Trojan provides attackers full remote access, including keylogging, screen control, and phishing overlays to harvest banking and cryptocurrency credentials. This incident is notable for its complex multi-stage deployment, worm-like propagation, and use of AI-aided code, reflecting a new evolution in financially motivated malware. The attack demonstrates the increasing convergence of social engineering, sophisticated fileless techniques, and abuse of popular messaging platforms, signaling urgent challenges for both enterprises and end users.
PowerSchool 2024 Data Breach: College Student Sentenced for Massive Attack
In December 2024, PowerSchool, a major provider of cloud-based education technology, suffered a significant data breach orchestrated by 19-year-old college student Matthew D. Lane from Worcester, Massachusetts. Lane infiltrated PowerSchool’s systems by exploiting a combination of credential theft and vulnerabilities in internal access controls, enabling him to exfiltrate large volumes of sensitive student and faculty data over several weeks. Law enforcement investigation led to his arrest and subsequent sentencing to four years in prison, highlighting both the sophistication of modern attackers and the sensitivity of educational data targeted. The case is especially relevant as threat actors increasingly set their sights on critical SaaS platforms and education technology, exploiting gaps in zero trust implementation and east-west traffic visibility. The incident underscores a rising trend in data breaches against public sector organizations and the urgent need for robust controls in cloud and hybrid environments.
How Adversaries Used AI CLI Tools for Command & Control in 2024
In early 2024, security researchers identified a new wave of cyber intrusions involving adversaries weaponizing AI-enabled command-line tools to facilitate command and control activities within targeted business environments. Attackers leveraged popular AI code-assistants such as Claude Code, integrating them into CLI workflows to generate and execute malicious payloads, exfiltrate credentials, and bypass conventional security controls. The attack chain typically relied on legitimate processes, enabling lateral movement and credential theft while avoiding detection by traditional endpoint defenses. Unauthorized east-west traffic and encrypted exfiltration allowed threat actors to maintain persistence and evade standard monitoring solutions, impacting both operational continuity and sensitive business data. The incident underscores a rapidly evolving threat landscape where generative AI and shell automation converge, accelerating the sophistication and speed of adversary tactics. As enterprises adopt AI-driven DevOps and operational tooling, the risk of shadow AI and undetected rogue automation increases, compelling a shift towards advanced visibility, zero trust segmentation, and policy enforcement across hybrid environments.