CREDIT: BT GROUP
“ The more colleagues understand how attackers are evolving, and how to respond effectively, the better prepared they’ ll be to protect
2024: LevelBlue founded as an independent organisation” cybersecurity joint
venture Tristan Morgan between, AT & T
Managing Director, and WillJam Ventures
themselves and the
BT Security, BT Group
A‘ human firewall’ refers to employees who are trained and empowered to recognise and respond to suspicious activity. This layer is often undervalued, despite human error contributing to the majority of breaches.
Attackers frequently exploit behaviour, trust or lack of awareness rather than purely technical gaps. In fact, employees may be the very last line of defence if automated systems miss something.
Overlooking the human firewall means overlooking one of the most critical parts of security. By investing in education and embedding security awareness and training into culture,
246 December 2025