Security vendor Bit9 promises to release limited details of a hack caused by a failure of the company to install the same security software on its own network that it sells to a handful of Fortune 500 companies. Hackers found a weakness in company servers that issue code-signing certificates. Once compromised, the hackers issued certificates for their own malicious software, which was then found on the networks of three Bit9 customers. The company plans to release more details of the hack, including details of tactics and files.”]