PC Matic is a cybersecurity software company founded in 1999 that develops endpoint protection solutions for consumers, businesses, and government entities. The company's core technology is built around application allowlisting (also referred to as whitelisting or software asset management), which restricts execution to only pre-authorized applications on a device, blocking unauthorized or malicious software from running regardless of whether the threat is known or unknown. PC Matic's product portfolio includes endpoint security software powered by its allowlisting engine, a VPN service, and PC optimization tools. The company positions application allowlisting as a critical layer in a defense-in-depth strategy, placing it between patch management and traditional antivirus to address threats that exploit unknown or zero-day vulnerabilities — a scenario particularly relevant to nation-state level cyberattacks. The company advocates against reliance on traditional signature-based antivirus, arguing it is ineffective against modern threats, and distinguishes its allowlisting approach from reactive technologies such as EDR/XDR, which it characterizes as unable to scale against high-volume, coordinated attacks. PC Matic serves both individual consumers and enterprise/government customers. The company reports over 3 million customers and claims to have scanned and protected more than 100 million applications and devices. Its stated mission is to provide affordable malware protection that achieves zero customer infections. The company is headquartered in the United States and is led by its founder and CEO, Rob Cheng.