The author shares insights gained from collaborating with governments and financial institutions on building cyber threat intelligence (CTI) communities. Highlights include the essential balance of size and trust within CTI networks; too large a group may hinder sharing, while too small can miss broad impact. After transitioning from military intelligence to the private sector, the author notes the contrasting willingness to share information, emphasizing that collective resilience against cyber risk is paramount for all financial institutions. The focus is on fostering trusted relationships to enhance collaborative cyber defense.
No financial institution is individually resilient. Cyber risk affects everyone and banks have a responsibility to protect the wider financial ecosystem.
Moving into the private sector was a culture shock, because the hesitation to share intelligence wasn't just a reality, it was pervasive.
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