Major tech companies struggle to plug holes in logging software

FILE PHOTO: An illustration picture shows a projection of binary code on a man holding a laptop computer, in an office in Warsaw June 24, 2013. REUTERS/Kacper Pempel/File Photo

SAN FRANCISCO (Reuters) - Some of the world’s largest technology companies are still struggling to make their products safe from a gaping vulnerability in common logging software a week after hackers began trying to exploit it.

Cisco Systems, IBM, VMware and Splunk were among the companies with multiple pieces of flawed software being used by customers on Thursday without available patches for the Log4j vulnerability, according to a running tally published by the U.S. Cybersecurity and Infrastructure Security Agency.