A proxy auto-config (PAC) file defines how web browsers and other user agents can automatically choose the appropriate proxy server (access method) for fetching a given URL.（摘自Wikipedia） ...

Any URL is basically an IP address that you can remember easily. In other words, every working URL on the Internet is actually an IP address. The concept of IP addresses goes beyond URLs and extends ...

A security hole allows attackers to crash Android phones and force them to soft-reboot. Discovered by Nightwatch Cybersecurity software engineer Yakov Shafranovich, the bug hinges on what are known as ...

Malware authors have developed a new, and frighteningly effective, tactic that uses a feature built into all of the modern browsers to redirect users to malicious sites without their knowledge or ...