Hackers appear to be struggling to exploit PHP flaws after global cybersecurity crisis

That could still change, of course, and cybersecurity experts warn that the threat will remain for weeks, if not longer.

The flaws were in PHP, a website programming language that is used in an estimated 69% of all websites.

“We have not yet seen these PHP vulnerabilities exploited in the wild yet,” said Sherrod DeGrippo, vice president of threat intelligence at Palo Alto Networks’ Unit 42.

“We have seen over 200 examples of proofs-of-concept exploit code, and we’re actively investigating them all,” she said, referring to programs that claimed they could exploit the PHP flaws.

Those models are not as powerful as those available to front-line cybersecurity researchers — and they typically struggle with complicated vulnerabilities like the PHP flaws.