An offshore company that is trusted by the major web browsers and other tech companies to vouch for the legitimacy of websites has connections to contractors for U.S. intelligence agencies and law enforcement, according to security researchers, documents and interviews. Google's Chrome, Apple's Safari, nonprofit Firefox and others allow the company, TrustCor Systems, to act as what's known as a root certificate authority, a powerful spot in the internet's infrastructure that guarantees websites are not fake, guiding users to them seamlessly. The company's Panamanian registration records show that it has the identical slate of officers, agents and partners as a spyware maker identified this year as an affiliate of Arizona-based Packet Forensics, which ... has sold communication interception services to U.S. government agencies for more than a decade. TrustCor's products include an email service that claims to be end-to-end encrypted, though experts consulted by The Washington Post said they found evidence to undermine that claim. A test version of the email service also included spyware developed by a Panamanian company related to Packet Forensics. A person familiar with Packet Forensics' work confirmed that it had used TrustCor's certificate process and its email service, MsgSafe, to intercept communications and help the U.S. government catch suspected terrorists. The physical address in Toronto given in [TrustCor's] auditor's report, 371 Front St. West, houses a UPS Store mail drop.