What is a Data Blocker

A Data Blocker is a physical USB device that prevents data transfer while allowing power to flow, protecting users from unauthorized data access or malware when charging their devices.

Expanded Explanation

Data Blockers, often referred to as USB condoms, are small adapters used to defend against a cyberattack technique known as juice jacking—where malicious charging stations or cables are used to exfiltrate data or install malware on connected devices. These blockers work by disabling the data pins in a USB connection, allowing only electrical current to pass through for charging purposes. Commonly used by travelers, cybersecurity professionals, and privacy-conscious users, data blockers are essential tools in physical cybersecurity hygiene. While simple in design, they play a vital role in mitigating risks posed by public USB ports in airports, hotels, and other high-traffic areas.

Related Terms

Juice jacking , USB security, physical attack mitigation, travel cybersecurity, and endpoint protection

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