Qualys - Qualys helps your business automate the full spectrum of auditing, compliance and protection of your IT systems and web applications.

strace - Trace system calls and signals. A diagnostic, debugging and instructional userspace utility.

Nessus - Nessus Professional is a security platform designed for businesses who want to protect the security of themselves, their clients, and their customers.

ftrace - A function tracer for the Linux kernel.

BreachLock - BreachLock is a versatile platform that provides scalable and smooth penetration testing services for vulnerabilities.

Valgrind - Valgrind is an instrumentation framework for building dynamic analysis tools.