Quantum computers remain largely in labs, but "Q-day"—when they could break standard encryption—is approaching. The Wall Street Journal examines the current state of this emerging technology and how organizations can prepare.

Separately, cybersecurity firm Malwarebytes warns that fake websites posing as Rock Star Games are distributing malware through fraudulent "Grand Theft Auto VI" demos. The malicious software steals credentials, cookies, and other data. The legitimate GTA VI release is scheduled for November.

Nutex Health, a Houston, Texas-based hospital operator, notified the SEC of a cyberattack resulting in stolen private and confidential information from its servers. The company disclosed few details about the breach's scope, timing, or data types affected.

Meanwhile, several companies await court approval for proposed settlements in lawsuits stemming from hacks that exposed personal, medical, or financial data. The WSJ Pro Cybersecurity team includes Bureau Chief Kim S. Nash and reporters Angus Loten and James Rundle.