Closed Door Security is a leading provider of penetration testing, engineering and certification services. CREST-accredited, a trusted partner of SBRC & Police Scotland and a certification body for the NCSC’s Cyber Essential Plus Scheme, Closed Door Security helps businesses unearth weaknesses within their network and harden their defences against cybercrime. Closed Door Security offers its customers tailor-made services to suit their specific security needs, from training and educating staff on cyber threats, carrying of security and vulnerability assessments, to running penetration tests and red teaming exercises. The company’s strength lies in its ability to think like an attacker, while providing real-world insight into cybercrime to help businesses defend and harden their networks against the growing tide of attacks they are encountering daily. The company was founded in 2021 and is headquartered in the Outer Hebrides in Scotland. Closed Door Security offers its customers penetration testing, compliance and governance services. Its experts help identify potential weaknesses and opportunities for attack pathways that may not have been taken into account before. They are able to identify certain exploits that can only occur when certain vulnerabilities are combined. The company has recognised certificates in the field of cybersecurity and many years of experience as well as awards.