On May 16, the Industrial Control Systems Cyber Emergency Response Team ("ICS-CERT") unit of DHS released a ICS-CERT Monitor report stating that an unnamed U.S. public utility's control system network was recently compromised in a cyberattack by computer hackers, although there is no evidence that the utility's operations were affected. The report stated that the hackers may have gained access to the utility's control systems through an internet portal employing a simple password mechanism.
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