https://securityblueprints.io/tags/insider-threat/ Recent content in Insider Threat 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/tesla-massive-data-breach/ Wed, 10 May 2023 00:00:00 +0000user@example.com (Niels Provos) https://securityblueprints.io/data-breaches/tesla-massive-data-breach/ Executive Summary The Tesla Massive Data Breach, discovered in May 2023, was a significant incident involving the unauthorized disclosure of sensitive data by two former employees to Handelsblatt, a German media outlet. On May 10, 2023, this breach came to light when Handelsblatt informed Tesla of their possession of approximately 100 gigabytes of confidential data, involving over 23,000 internal files (CentralEyes , Hackread ). Severity of Impact The breach impacted over 75,735 individuals, including both current and former employees. https://securityblueprints.io/data-breaches/consumer-financial-protection-bureau-data-breach/ Tue, 14 Feb 2023 00:00:00 +0000user@example.com (Niels Provos) https://securityblueprints.io/data-breaches/consumer-financial-protection-bureau-data-breach/ Executive Summary In 2023, the Consumer Financial Protection Bureau (CFPB) experienced a significant data breach due to internal security lapses. An employee transferred confidential records via email to a personal account, compromising the data of approximately 256,000 individuals. This incident underscores critical deficiencies in CFPB’s data protection protocols and has raised considerable concerns over internal security measures. Source Severity of Impact The breach affected records from seven financial institutions; however, some reports suggest this number could be higher. https://securityblueprints.io/data-breaches/yahoo-intellectual-property-theft/ Fri, 11 Feb 2022 00:00:00 +0000user@example.com (Niels Provos) https://securityblueprints.io/data-breaches/yahoo-intellectual-property-theft/ Executive Summary In February 2022, Yahoo experienced a significant insider threat incident involving the alleged theft of intellectual property by Qian Sang, a former employee. The breach occurred when Sang, upon receiving a job offer from direct competitor The Trade Desk, allegedly exfiltrated approximately 570,000 pages of proprietary information. This data included: Source code Advertising algorithms Internal strategy documents The stolen information was related to Yahoo’s demand-side platform (DSP) for real-time ad buying, known as AdLearn. https://securityblueprints.io/data-breaches/cash-app-data-breach/ Fri, 10 Dec 2021 00:00:00 +0000user@example.com (Niels Provos) https://securityblueprints.io/data-breaches/cash-app-data-breach/ Executive Summary In April 2022, Block, the parent company of Cash App, disclosed a significant data breach involving unauthorized access by a former employee, who downloaded sensitive financial information from approximately 8.2 million users. This exposure included brokerage account details and stock trading activities. The breach was publicly announced on April 4, 2022 (source ). Despite the breadth of affected data, no personally identifiable information such as usernames, passwords, or Social Security numbers was compromised (source ). https://securityblueprints.io/data-breaches/south-georgia-medical-center-data-theft/ Fri, 12 Nov 2021 00:00:00 +0000user@example.com (Niels Provos) https://securityblueprints.io/data-breaches/south-georgia-medical-center-data-theft/ Executive Summary The November 2021 data breach at South Georgia Medical Center (SGMC) was caused by a former employee downloading patient data onto a USB drive without authorization. This incident underscores the risks associated with insider threats and highlights the necessity for stringent data security protocols. Incident Details Breach Type: Insider data theft involving unauthorized transfer of patient information. Compromised Data: Included protected health information such as patient names, birth dates, and test results. https://securityblueprints.io/data-breaches/twitter-2020-data-breach-incident/ Wed, 15 Jul 2020 00:00:00 +0000user@example.com (Niels Provos) https://securityblueprints.io/data-breaches/twitter-2020-data-breach-incident/ Executive Summary In July 2020, a critical cybersecurity breach, termed the Twitter 2020 Data Breach, occurred, wherein a 17-year-old hacker, Graham Ivan Clark, along with accomplices, exploited vulnerabilities in Twitter’s security infrastructure. They gained unauthorized access to Twitter’s internal network, commandeering numerous high-profile accounts to disseminate a Bitcoin scam. Key Dates Breach Occurrence: July 15, 2020 Public Disclosure: July 15, 2020 Severity of Impact The breach affected highly influential accounts such as those of Barack Obama and Elon Musk, resulting in fraudulent tweets promoting a Bitcoin scam. https://securityblueprints.io/data-breaches/alibaba-taobao-data-breach/ Fri, 01 Nov 2019 00:00:00 +0000user@example.com (Niels Provos) https://securityblueprints.io/data-breaches/alibaba-taobao-data-breach/ Executive Summary In November 2019, Alibaba’s Taobao platform experienced a breach involving unauthorized data scraping activities by a developer. This breach involved collecting 1.1 billion pieces of user data, including usernames and mobile numbers, over several months until discovered in July 2020. Officially acknowledged on June 16, 2021, the breach stands as significant due to its volume and impact. Severity of Impact The breach is one of the largest data leaks recorded, affecting approximately 710 million Taobao users. https://securityblueprints.io/data-breaches/capital-one-data-breach-2019/ Wed, 17 Jul 2019 00:00:00 +0000user@example.com (Niels Provos) https://securityblueprints.io/data-breaches/capital-one-data-breach-2019/ Executive Summary In July 2019, Capital One experienced a significant data breach that compromised over 100 million customer records. This breach occurred due to a server-side request forgery (SSRF) exploiting a misconfigured Web Application Firewall (WAF) in their systems. The attack was orchestrated by Paige A. Thompson, a former software engineer at Amazon Web Services (AWS), leveraging insider knowledge and scanning for vulnerabilities using the misconfigured AWS resources. Key Dates Attack Period: March 22-23, 2019 Discovery Date: July 19, 2019 Public Disclosure: July 29, 2019 Severity of Impact This breach ranks among the largest in history, affecting approximately 100 million individuals in the United States and around 6 million in Canada, approximately 106 million individuals combined. https://securityblueprints.io/data-breaches/australian-immigration-department-g20-data-breach/ Fri, 07 Nov 2014 00:00:00 +0000user@example.com (Niels Provos) https://securityblueprints.io/data-breaches/australian-immigration-department-g20-data-breach/ Executive Summary In 2015, the Australian Immigration Department was involved in a data breach releasing sensitive personal details of G20 world leaders due to an administrative error. The error occurred when an employee improperly used the autocomplete function in Microsoft Outlook, resulting in sensitive information being sent to an unintended recipient. This incident compromised data such as passport numbers, visa information, and birth dates of leaders including Barack Obama, Vladimir Putin, and Angela Merkel (ABC News ).