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Castle

Castle prevents account takeover in web and mobile apps.

Founders / Key Team

Johan Brissmyr
Johan Brissmyr
CEO & Co-Founder

Johan is co-founder and CEO of Castle. Johan formerly co-founded SettleBox, where he built the risk engine protecting online marketplaces from fraud.

Sebastian Wallin
Sebastian Wallin
CTO & Co-Founder

Sebastian is co-founder and CTO at Castle. He was raised and bred at the security department at Sony Mobile, keeping their flash memories clean from vulnerabilities.