Offensive Security
Certificates made by the creators of kali linux. During my
OSCP exam I hacked in 24hours 5 machines and got Administrator access
to each one of them. Two web applications a custom built exploit where
I had to understand a windows service in depth to then write my own
hack / exploit to gain access to the machine. I also achieved the OSEP
which is the expert version of the OSCP where I had to take over a company
with advanced defences and security practices by bypassing anti viruses.