strace - Trace system calls and signals. A diagnostic, debugging and instructional userspace utility.
Qualys - Qualys helps your business automate the full spectrum of auditing, compliance and protection of your IT systems and web applications.
ftrace - A function tracer for the Linux kernel.
Nessus - Nessus Professional is a security platform designed for businesses who want to protect the security of themselves, their clients, and their customers.
perf - Perf is a simple app monitoring solution paired with meaningful alerts.
BreachLock - BreachLock is a versatile platform that provides scalable and smooth penetration testing services for vulnerabilities.