Thursday update: The Seton hospital system, which includes Dell Children’s Medical Center in Austin, said Thursday that normal computer operations have been restored at all of its Austin-area hospitals, following reports of an attempted computer hack attack.

"A virus targeting hospital systems attacked Seton’s computer network Sunday night," a Seton Healthcare Family spokeswoman said in a statement. "The attempt was unsuccessful, so no data was encrypted or lost."

Monday: Ascension Health said Monday it had detected suspicious activity on its network of computers, which includes the Seton family hospitals.

Representatives for the hospital did not provide details on Monday about the possible security breach or when it occurred but said that they had not identified any issues with patient safety.

Here is the statement from Ascension Health:

"We recently identified suspicious activity within our network, and are currently monitoring the situation. We have not identified any patient safety issues and no devices have been reported as encrypted by ransomware. We have proactively set up safety precautions to ensure all our assets are protected."