LPL Financial's 14,000-plus advisers nationwide experienced a network service outage for nearly 24 hours in the middle of last week’s unprecedented WannaCry global cyberattack that the company says was unrelated to its failure. The blackout revealed vulnerabilities that one prominent adviser called “embarrassing.”

“Last Friday at 2:38 p.m. ET, a construction crew damaged underground cables that provide critical network connectivity for LPL," the firm said in a statement. "Our backup connection experienced an unrelated technical issue and was unable to provide support as planned."

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