Hello @ibuildrobots Thanks for your patience on this query.We are happy that you brought this query on this forum!
We have discussed this with our Azure Sphere Team!
We already know that the Azure Sphere Security Research Challenge was concluded in late 2020.
If you are looking for 'security-related' one (as you may be referring it as 'hackathon'), then the answer would be that we don't have anything planned at the moment.
For sure all future Azure Sphere Research\Challenge\Hackathons will be announced in advance!
Please visit and follow the Azure Sphere Updates Page:
Internet of Things Blog: Articles with label Azure Sphere.
Please comment in the below section for further help and information on this topic! Happy to help!
Hello @ibuildrobots We are checking on this inquiry internally and will get the updates soon.