https://securityblueprints.io/tags/zero-day-vulnerability/ Recent content in Zero-Day Vulnerability on Security Blueprints Hugo en user@example.com (Niels Provos) user@example.com (Niels Provos) Security Blueprints, LLC Sun, 06 Sep 2026 23:57:45 +0000 https://securityblueprints.io/data-breaches/us-department-of-the-treasury-beyondtrust-breach-december-2024/ Mon, 02 Dec 2024 00:00:00 +0000user@example.com (Niels Provos) https://securityblueprints.io/data-breaches/us-department-of-the-treasury-beyondtrust-breach-december-2024/ Executive Summary Key facts: Who: Treasury initially attributed the intrusion generically to “a China state-sponsored Advanced Persistent Threat (APT) actor” (wired.com ; bleepingcomputer.com ); a Wednesday Bloomberg report later attributed it to Silk Typhoon (formerly Hafnium); OFAC separately sanctioned contractor Yin Kecheng, a Shanghai-based, decade-active actor tied to China’s Ministry of State Security, on January 17, 2025, as “associated with the recent compromise” (bleepingcomputer.com ; techcrunch.com ; home.treasury.gov ). China’s embassy denied involvement (en. https://securityblueprints.io/data-breaches/moveit-data-breach-june-2023/ Thu, 01 Jun 2023 00:00:00 +0000user@example.com (Niels Provos) https://securityblueprints.io/data-breaches/moveit-data-breach-june-2023/ Executive Summary In June 2023, a significant data breach involving the MOVEit Transfer software began; within its first weeks it had affected over 200 organizations globally, a toll that continued climbing for more than a year afterward (Axios ). This breach was triggered by exploiting a zero-day vulnerability, CVE-2023-34362, within the MOVEit Transfer tool by Progress Software Corporation. The Clop ransomware group, using its Ransomware as a Service (RaaS) model, claimed responsibility for the data theft operations. https://securityblueprints.io/data-breaches/microsoft-exchange-server-breach/ Sun, 03 Jan 2021 00:00:00 +0000user@example.com (Niels Provos) https://securityblueprints.io/data-breaches/microsoft-exchange-server-breach/ Executive Summary In January 2021, Microsoft Exchange email servers were targeted in a significant cyberattack that exploited multiple zero-day vulnerabilities, affecting over 30,000 organizations in the United States. Initially detected by Volexity on January 3, 2021, the breach was publicly acknowledged by Microsoft on March 2, 2021, upon releasing emergency patches (source , source ). Severity of the Impact Globally, the breach compromised up to 250,000 servers, impacting critical sectors such as government, banking, and infrastructure, thereby posing risks to operational integrity and data confidentiality (source , source ). https://securityblueprints.io/data-breaches/notpetya-ransomware-attack/ Tue, 27 Jun 2017 00:00:00 +0000user@example.com (Niels Provos) https://securityblueprints.io/data-breaches/notpetya-ransomware-attack/ Executive Summary The NotPetya ransomware attack in June 2017 is considered one of the most destructive cyber incidents on record. Originating through a compromised update of MeDoc, a Ukrainian accounting software, the malware propagated swiftly, impacting organizations across more than 65 countries within hours of being detected on June 27, 2017. The event highlighted significant vulnerabilities in software supply chains. Severity of the Impact NotPetya inflicted damages exceeding $10 billion globally, with significant disruptions in healthcare, logistics, and government sectors. https://securityblueprints.io/data-breaches/google-aurora-incident/ Tue, 01 Dec 2009 00:00:00 +0000user@example.com (Niels Provos) https://securityblueprints.io/data-breaches/google-aurora-incident/ Executive Summary The Google Aurora incident, occurring in December 2009, was a significant cybersecurity breach affecting Google and multiple other corporations in various industries, particularly technology. The attack aimed to steal intellectual property and unauthorized Gmail access of Chinese human rights activists. It is widely attributed to state-sponsored entities linked to the Chinese government, employing sophisticated cyber espionage tactics. Major Threat Actors The attack is attributed to entities based in China, utilizing Advanced Persistent Threat (APT) techniques.