Welcome back. The tiny country of Estonia, which shares a border with Russia, offers a glimpse into how digital technology will play a role as societies mobilize civilian and military networks against a larger adversary.

Sten Tamkivi, a Skype veteran and startup founder, and fellow Estonian Taavet Hinrikus, who co-founded fintech company Wise, have teamed up with other founders and chief executives around Europe to make early-stage investments in ambitious startups in areas such as healthcare, energy and defense. Read the full story. 

More news below. 

Covenant Health, a healthcare system with facilities in six East Coast states, began notifying nearly 8,000 patients that their personal and medical information was breached in May. Covenant is offering free credit and identity-theft monitoring to those whose Social Security numbers were exposed. 

• "We also recommend that you review the statements you receive from your health insurer. If you see services you did not receive, please contact your insurer immediately," Janice Bosteels, system chief compliance and privacy officer, said in a notice to patients.

Family surveillance: While you can set up parental controls and monitoring services, nothing is more effective than simply looking at the phone itself. But should you? The younger or less mature the child, the less privacy they should expect and all parents should know the passcode to their child’s phone. (WSJ)

The WSJ Pro Cybersecurity team is Deputy Bureau Chief Kim S. Nash and reporters Angus Loten, James Rundle and Catherine Stupp. Follow us on X @WSJCyber. Reach the team by replying to any newsletter you receive or by emailing Kim at kim.nash@wsj.com.