An artificial intelligence (AI) arms race could lead to or exacerbate an arms race in cybertechnology, transforming the cyberwarfare landscape. This transformation could heighten the difficulty of securing frontier AI labs against cyberattacks. If states’ frontier AI labs are mutually vulnerable to cyberattacks from their adversaries, states have novel incentives to coordinate on AI development under specific circumstances. Further incentives for states to coordinate would emerge if their labs were vulnerable to cyberattacks by both state and non-state actors. Such coordination would reduce arms race-driven international security risks from AI, although that risk might still be elevated in the case of bad non-state actors. There is a pressing need for further research on how cyberwarfare will shape states’ incentives to buy in to international AI coordination regimes. Research in this vein should seek to identify and leverage cybersecurity vulnerabilities that could be used to increase the effectiveness of international coordination efforts.