Stay informed on the latest exposure risks in information security. Expert analysis, breach updates, and data leak prevention tips. Stay secure!
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Background for this topic.
Exposure is the condition in which a system, service, credential, vulnerability, or sensitive information is accessible or discoverable by people or systems that should not reach it. In threat modeling, it describes an attack surface or loss of control—not proof that an attacker has succeeded. Examples include an internet-facing administration interface, cloud storage with unintended permissions, a secret committed to source code, or personal data sent to an unintended recipient. Its significance depends on what is exposed, who can reach it, and which protections remain.
The primary defense is exposure reduction: maintain an accurate asset inventory, remove unnecessary public access, enforce least-privilege permissions and strong authentication, patch externally reachable software, and revoke leaked credentials or secrets. Encryption can limit the value of exposed data, but does not correct an exposed access path. Continuous scanning and log review help identify changes and support rapid containment when exposure is discovered.
Thousands of Citrix Netscaler ADC and Gateway servers exposed online are likely vulnerable against a critical remote code execution (RCE) bug exploited by unauthenticated attackers in the wild as a zero-day. [...]
Thousands of Citrix Netscaler ADC and Gateway servers exposed online are likely vulnerable against a critical remote code execution (RCE) bug exploited by unauthenticated attackers in the wild as a zero-day. [...]
File under PEBCAK VirusTotal today issued a mea cupla, saying a blunder earlier this week by one of its staff exposed information belonging to 5,600 customers, including the email addresses of US Cyber Command, FBI, and NSA employees.…
Researchers found that the private keys and secrets they discovered being exposed within the Docker framework are already being used in the wild.
Multiple security flaws have been disclosed in Apache OpenMeetings, a web conferencing solution, that could be potentially exploited by malicious actors to seize control of admin accounts and run malicious code on susceptible servers
Malicious actors have recently used an allegedly old data leak affecting Roblox developers
Earlier this month, security researchers discovered a new peer-to-peer (P2P) malware with self-spreading capabilities that targets Redis instances running on Internet-exposed Windows and Linux systems. [...]
Attack surfaces are growing faster than security teams can keep up. To stay ahead, you need to know what's exposed and where attackers are most likely to strike. With cloud migration dramatically increasing the number of internal and external targets, prioritizing threats and managing your attack surface from an attacker's perspective has never been more important. Let's look at why it's growing
[This is Part III in a series on research conducted for a recent Hulu documentary on the 2015 hack of marital infidelity website AshleyMadison.com.] In 2019, a Canadian company called Defiant Tech Inc. pleaded guilty to running LeakedSource[.]com, a service that sold access to billions of passwords and other data exposed in countless data breaches. KrebsOnSecurity has learned that the owner of Defiant Tech, a 32-year-old Ontario man named Jordan Evan Bloom, was hired in late 2014 as a developer for the marital infidelity site AshleyMadison.com. Bloom resigned from AshleyMadison citing health reasons in June 2015 -- less than one month before unidentified hackers stole data on 37 million users -- and launched LeakedSource three months later.