How safe is Frontier?

I'm curious to know, just how SAFE is Frontier in the world of cryptocurrency? With so many exchanges and platforms out there, it's essential to understand the security measures in place to protect users' funds and data. Can you elaborate on the security protocols Frontier has implemented to ensure a safe and secure experience for its users? Are there any known vulnerabilities or past incidents that users should be aware of? I'm looking for a comprehensive overview of Frontier's safety measures to help me make an informed decision about using their services.