Cybersecurity is a major concern for just about every business. In the legal field, you have special considerations. You have extremely sensitive data to protect about your firm, your clients, and their cases.
Hackers understand the value of this information and will specifically target law firms to breach their systems. 
This can result in downtime for your firm or the extraction of sensitive data to be sold on the dark web.
Source: https://www.entrepreneurshipsecret.com/the-importance-of-cyber-security-in-the-legal-field/