Compare the best cybersecurity stocks. Top cybersecurity companies protect data, networks, and systems from digital attacks. Zscaler (ZS), Fortinet (FTNT) and CrowdStrike Holdings (CRWD) are some of the most trending stocks in the biotech sector. See how they compare to other companies such as OCTA (OCTA), Rapid7 (RPD) and Varonis Systems (VRNS).