SAN FRANCISCO (KRON) — On Wednesday, cyber glitches happened in the United States, involving United Airlines, the Wall Street Journal and the New York Stock Exchange.

Both the stock exchange and United blamed computer problems for the shutdown. The White House said it does not believe a malicious act was behind the glitch. But many still question why the technology failed.

“It could have been a glitch, it could have been a coincidence that these three sites went down, but who knows?” consumer security expert Erica Sandberg said. “What’s important though is how vulnerable we are.”

Cyber experts said most companies today spend less than 10 percent of their information technology budgets.