As data breaches and ransomware attacks have become mainstream threats to companies in all industries, law firms continue to respond by bulking up their cybersecurity practices.

In the latest such hire, the former chairman of Dentons’ privacy and cybersecurity group, Andy Roth, has moved to Cooley. Roth joined legacy firm SNR Denton in 2012 from American Express Co., where he spent six years as chief privacy officer.