It’s bad enough when a company’s devices have dangerous vulnerabilities, but when that company is Samsung, the largest smartphone manufacturer in the world, things are REALLY bad. According to security expert Ryan Welton, hundreds of millions of Samsung devices are vulnerable to a certain bug that could allow hackers to gain remote access to the affected devices. The worst part is that, not only are newer devices like the Galaxy S6 affected, there’s no way of knowing that the device has been compromised.