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Databases store and organize data electronically, enabling efficient retrieval and management. They often hold sensitive information such as user credentials, financial records, or personal details, making them prime targets for attackers. Common database types include relational databases using structured query language (SQL) and NoSQL databases designed for unstructured data.

Security risks include SQL injection attacks that exploit improper input handling to manipulate or extract data, and misconfigured access controls that allow unauthorized users to view or alter information. Protecting databases involves strict authentication, role-based access controls, encryption of data at rest and in transit, and timely application of security patches to database software. Monitoring query logs and access patterns helps detect suspicious activity that could indicate compromise or insider threats.

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Krebs on Security 1 year, 3 months ago

Funding Expires for Key Cyber Vulnerability Database

A critical resource that cybersecurity professionals worldwide rely on to identify, mitigate and fix security vulnerabilities in software and hardware is in danger of breaking down. The federally funded, non-profit research and development organization MITRE warned today that its contract to maintain the Common Vulnerabilities and Exposures (CVE) program -- which is traditionally funded each year by the Department of Homeland Security -- expires on April 16.

Krebs on Security 1 year, 10 months ago

National Public Data Published Its Own Passwords

New details are emerging about a breach at National Public Data (NPD), a consumer data broker that recently spilled hundreds of millions of Americans' Social Security Numbers, addresses, and phone numbers online. KrebsOnSecurity has learned that another NPD data broker which shares access to the same consumer records inadvertently published the passwords to its back-end database in a file that was freely available for download from its homepage until today.

AT&T Corp. disclosed today that a new data breach has exposed phone call and text message records for roughly 110 million people -- nearly all of its customers. AT&T said it delayed disclosing the incident in response to "national security and public safety concerns," noting that some of the records included data that could be used to determine where a call was made or text message sent. AT&T also acknowledged the customer records were exposed in a cloud database that was protected only by a username and password (no multi-factor authentication needed).

Krebs on Security 2 years, 5 months ago

From Cybercrime Saul Goodman to the Russian GRU

In 2021, the exclusive Russian cybercrime forum Mazafaka was hacked. The leaked user database shows one of the forum's founders was an attorney who advised Russia's top hackers on the legal risks of their work, and what to do if they got caught. A review of this user's hacker identities shows that during his time on the forums he served as an officer in the special forces of the GRU, the foreign military intelligence agency of the Russian Federation.

A sprawling online company based in Georgia that has made tens of millions of dollars purporting to sell access to jobs at the United States Postal Service (USPS) has exposed its internal IT operations and database of nearly 900,000 customers. The leaked records indicate the network's chief technology officer in Pakistan has been hacked for the past year, and that the entire operation was created by the principals of a Tennessee-based telemarketing firm that has promoted USPS employment websites since 2016.

Krebs on Security 3 years, 7 months ago

FBI’s Vetted Info Sharing Network ‘InfraGard’ Hacked

InfraGard, a program run by the U.S. Federal Bureau of Investigation (FBI) to build cyber and physical threat information sharing partnerships with the private sector, this week saw its database of contact information on more than 80,000 members go up for sale on an English-language cybercrime forum. Meanwhile, the hackers responsible are communicating directly with members through the InfraGard portal online -- using a new account under the assumed identity of a financial industry CEO that was vetted by the FBI itself.

Krebs on Security 3 years, 11 months ago

Breach Exposes Users of Microleaves Proxy Service

Microleaves, a ten-year-old proxy service that lets customers route their web traffic through millions of Microsoft Windows computers, exposed their entire user database and the location of tens of millions of PCs running the proxy software. Microleaves claims its proxy software is installed with user consent. But research suggests Microleaves has a lengthy history of being supplied with new proxies by affiliates incentivized to install the software any which way they can -- such as by secretly bundling it with other software.

Krebs on Security 4 years, 3 months ago

RaidForums Gets Raided, Alleged Admin Arrested

The U.S. Department of Justice (DOJ) said today it seized the website and user database for RaidForums, an extremely popular English-language cybercrime forum that sold access to more than 10 billion consumer records stolen in some of the world's largest data breaches since 2015. The DOJ also charged the alleged administrator of RaidForums -- 21-year-old Diogo Santos Coelho, of Portugal -- with six criminal counts, including conspiracy, access device fraud and aggravated identity theft.