Bloomberg Law – “An attack on a file-sharing company used by Big Law firms highlights the importance of vetting third-party vendors to better safeguard confidential client data, privacy and cybersecurity professionals say. Both Jones Day and Goodwin Procter were affected in recent weeks by a breach at Accellion, which provides file transfer and other services for law firms and businesses. Jones Day, which revealed its breach Tuesday, declined to comment on next steps. Law firms are particularly attractive targets for hackers because they often work with large companies whose confidential or proprietary data can be sold to other bad actors on the dark web, said Neil Daswani, co-director of Stanford University’s Advanced Security Certification Program. “Third-party compromises are one of the most common threats,” Daswani said. “It’s especially important for law firms to set the right example if they want to attract business.”…