Some Macs are missing updates, and you might never realize

An unexplained Mac issue has left thousands of Apple’s computers potentially vulnerable to malware, though the Cupertino firm has downplayed the severity of the flaw. Researchers at Duo Security discovered that, while Apple had been diligent in upgrading macOS and security updates, the EFI – or Extensible Firmware Interface – was in some cases left unchanged. That, they point out, …