An investigation is underway after hackers used a security flaw in Microsoft software to internationally infiltrate agencies and businesses over the weekend.

A sweeping cyber espionage operation targeting Microsoft server software compromised about 100 different organizations as of the weekend, two of the organizations that helped uncover the campaign said on Monday.

The tech giant will provide key AI assistance to French start up Iconem, to help them stitch together hundreds of thousands of high resolution photos and build a replica of the cathedral that is expected to be made available to scientists and the public.

Microsoft Corp.’s server software is under attack from unidentified hackers, with cybersecurity analysts warning of widespread security breaches across the globe.

Federal and state agencies have been plunged into panic after hackers prised open a gap in the armor of a Microsoft program’s security software, researchers have said. At least two unnamed federal agencies,