Adobe Reader 9.3.3 _best_ (Secure)

The flaw resided in how Adobe handled embedded within PDF files. By simply opening a malicious PDF, an attacker could cause the application to crash and execute unauthorized code, effectively taking full control of the victim's system. The Arrival of 9.3.3

The US Department of Defense (DoD) and many financial institutions were slow to leave Windows XP. They operated "air-gapped" networks (no internet connection) where malware risk is zero, but compatibility is king. Adobe Reader 9.3.3

If you are managing legacy systems, Adobe Reader 9.3.3 was designed for the following hardware and software: The flaw resided in how Adobe handled embedded