NAPERVILLE (CBS) — The city of Naperville blames a hacker for shutting down its official website for nearly a week.

But Naperville’s city manager Doug Krieger says residents won’t have to worry about their credit cards being compromised by the virus.

Meantime, there’s a criminal investigation into the breach.

The hacker has left what Krieger called the digital version of fingerprints, and the main site will remain down while the investigation continues.

LISTEN: WBBM Newsradio’s Nancy Harty Reports

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