Security firm Stormshield loses source code in cyber attack Source code from two products developed by French cyber security firm was compromised in a December 2020 incident Share this item with your network: By Published: 05 Feb 2021 11:32 France-based cyber security firm Stormshield has revealed a leak of source code from its Stormshield Network Security and Network Security Industrial Firewall products following a cyber attack that saw malicious actors gain unauthorised access to a technical portal used by customers and partners to manage tech support tickets. The incident, understood to have occurred in December 2020, also saw the personal data and technical exchanges associated with a number of customer accounts accessed and viewed, and possibly stolen. All the affected users have already been contacted.