Apple Pay has been expanding steadily since its launch last fall, but now it also has the support of the federal government. Speaking at the White House Cyber Security Summit today, Apple CEO Tim Cook revealed that Apple Pay will support federal payment cards later this year, including social security and those used by veterans. Cook also hinted that federal transactions -- like paying for tickets and gift shop items at national parks -- will also work with the platform. By making the announcement today, he's also making it clear that the government is pretty confident about Apple Pay's security capabilities. Unlike traditional credit card transactions, Apple's platform never reveals your full card number to merchants, and it also doesn't keep records of your purchases. "We can imagine a day in the not too distance future where your wallet becomes a remnant of the past," Cook said. "Your passport, your driver's license, and other important documents can be digitally stored in a way that's safe, secure, and easy to access."