Preemptive Security Starts Here


We believe the reactive era of cloud security is over. It’s time for an operating model that keeps pace with cloud and AI. That’s why we created Blast, so you can use your cloud’s own controls to model, test, and safely enforce every change. So risk goes down, noise stays low, and your environment stays resilient as it grows.

Blast Security team photo - cloud security leaders building the Preemptive Cloud Defense platform
Blast Security team, the people behind Preemptive Cloud Defense.

We’re a team of cybersecurity leaders who have spent the last decade working together to make preemptive cloud defense the new standard. Over those years, some of us founded Solebit and led it through its acquisition by Mimecast, and together we went on to lead Mimecast’s Israel branch and teams in global cybersecurity companies. We were called to lead a national cloud security project in reserve duty, and in that fast, high-stakes environment one truth became clear: security must match the cloud’s speed, scale, and complexity. That moment sparked Blast, and we are excited to turn that vision into reality.

Boris Vaynberg

Boris has more than 20 years of cybersecurity leadership. Before founding Blast, he was GM of Mimecast Israel and VP of Advanced Threat Detection, joining via Mimecast’s acquisition of Solebit, where he was Co-founder & CEO. Under his leadership, Solebit became a Zero-Day Prevention leader. He started his career in Mamram, leading offensive and defensive cybersecurity teams.

Ido Bukra

Ido has more than 12 years of experience leading product for defensive cyber solutions in large enterprises. Before co-founding Blast, he drove detection strategy and product management at SentinelOne, Mimecast, and Solebit, working closely with Fortune 500 customers and research teams. Earlier, as an officer in an elite IDF cyber unit, Ido led incident response and security operations, investigating and mitigating cloud threats in fast-growing environments.

Roi Panai

Roi is a cybersecurity expert with 15 years in R&D leadership, specializing in preventative security. Before founding Blast, he held key roles in startups and global enterprises. He served in an elite IDF unit, developed advanced security tech, and led Solebit’s malware prevention engines. After Solebit’s acquisition, he became an R&D Director at Mimecast, driving innovation.

Dayana Nevo

Dayana is a marketing leader with over 15 years of experience shaping brands and go-to-market strategies in the cybersecurity industry. Before joining Blast, she built the marketing engine and global presence for several high-growth startups, including Seraphic Security and WalkMe. Known for blending strategic clarity with creative edge, she specializes in building scalable marketing foundations that drive growth.

Rotem Mizrachi

Rotem is an experienced engineering leader with a strong background in large-scale cloud-native systems. Before joining Blast as Head of Engineering, he led R&D groups at F5 and Wib (acquired by F5), driving innovation in API and cloud security. Earlier in his career, he was part of the engineering leadership at Solebit and later at Mimecast following Solebit’s acquisition, focusing on high performance infrastructure and scalable architectures. Rotem brings deep expertise in system architecture, stream processing, and data intensive platforms, combining hands on technical excellence with a people first leadership approach.

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