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Top 20 Cybersecurity Companies You Need to Know in 2025

eSecurity Planet

Fortinet: Best for Network Security Perimeter Protection 15 $74.33 Bitdefender: Best for endpoint security and ransomware protection 3 No current available value 4.7 Cisco: Best for Integrated Network Security 16 $242.51 CrowdStrike: Best for Endpoint Security and Services 8 $89.86 Visit Palo Alto Networks 2.

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Top Cybersecurity Companies for 2021

eSecurity Planet

Gartner gave it top place in unified threat management (UTM), and it was named a Leader in next-gen firewalls (NGFW). A startup getting to Unicorn status (valued at a billion or more) on the back of security training is quite a feat. Cisco’s roots are in networking but by necessity it has expanded into security and storage.

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Xen and the Art of Vulnerability Maintenance

NopSec

The recent Xen hypervisor bug and the 2003 Northeast blackout due to the older rare condition error illustrate how a single vulnerability can represent widespread risk. Security has many layers and collaborators as part of the process to ensure a relatively high assurance of minimum risk.