Data security at law firms continued to be a challenge in 2021, with professionals working from home, trickling back into the office, then being sent home again to wrap up the year. New threats to data security emerged, along with new best practices for protecting law firm and client data. This past year's developments can be used as a forecast for upcoming law firm data security. Advancing best practices to protect against emerging threats have developed, and security for work-from-anywhere situations has improved.