CrowdStrike acquires Fiddler AI and Dreadnode.

Sentra has secured $150 million in a strategic capital investment led by Capital One Ventures.

Upwind Security raises $400 million in Series C funding.

Blackwall (formerly BotGuard) lands $100 million. Tegria has acquired Massachusetts-based cybersecurity and cloud hosting provider CloudWave.

Proofpoint to acquire Varonis for $6.3 billion.

Reach Security has raised $50 million in a Series B round.

Harmonic Security secures $50 million in a Series B round.

CrowdStrike is in talks to acquire data loss prevention startup Orion Security for $500 million.

Armadin has raised $255.5 million in a Series B round led by Andreessen Horowitz and Accel

Quantum eMotion has agreed to acquire British Columbia-based cybersecurity provider Plurilock.