BitDam Blog

Top 14 Cyber Security Influencers to Follow
Rotem Shemesh
Rotem Shemesh
7 minutes & 12 seconds read · July 29, 2019

Top 14 Cyber Security Influencers to Follow

When it comes to cyber security, the only constant is change. Both the number and the sophistication of cyberattacks is growing across the board, and the security industry is quickly evolving to address these challenges with innovative solutions. 

Email remains a major vector for cyberattacks of all kinds with content-borne attacks being very common, while email security is a fast-moving field. Knowing the right thought leaders to follow is crucial to staying current on the latest trends and developments. Check out our list of top 14 cyber security influencers to follow on Twitter, LinkedIn and conferences and never miss out on an important update again.

1. Jeremiah Grossman 

Followers: 60K

Posting Frequency: 1-2 a day

Favorite topics: Ransomware, Cyber attacks, Ethical Hacking

Jerimiah is the CEO of Bit Discovery and a founder of WhiteHat Security, the biggest ethical hacker collective on the planet. Jerimiah amassed a number of industry awards and recognition from companies like Microsoft, Mozilla, Google and Facebook for uncovering critical vulnerabilities and security flaws in their systems. He is one of the world’s top experts when it comes to ethical hacking, and releases a lot of educational content on hacking and security. 

Over the span of his career, Jeremiah has discovered new ways to sidestep corporate firewalls, abuse online advertising networks to take any website offline, hijack email and bank accounts, and many other innovative cyberattack techniques. Thank god, he is one of the good guys!

2. Mikko Hypponen

Followers: 194K

Posting Frequency: 1-2 a day

Favorite topics: IoT, Viruses, Retro Technology

Mikko is a global security expert. He has worked at F-Secure since 1991, and his research and articles have been published in the New York Times, Wired, and Scientific American. A frequent guest on international TV, Mikko has lectured at the universities of Stanford, Oxford and Cambridge. He frequently tweets and talks about old-time technology from decades ago, the latest developments of today, and how the two connect to create the current complex landscape.

3. Andy Ellis

Followers: 19K

Posting Frequency: Daily

Favorite topics: Authentication, Cloud, Crypto, Malware

Andy Ellis is Akamai’s CSO on a mission of “making the internet suck less.”  A heavy Twitter user, Andy tweets about pretty much everything, from personal pet peeves to the latest updates on email security: “The real problem of links is that, for all intents and purposes, email clients are the trusted core of enterprises, and accept unsanitized inputs from just about anyone.”

4. Omar Santos

Followers: 10.5K

Posting Frequency: 1-2 a day

Favorite topics: Vulnerability research, Threat intelligence

Omar is an active member of the ethical hacking community who has amassed over 7,000 references on GitHub related to ethical hacking, penetration testing, digital forensics and incident response (DFIR), vulnerability research, and more. Omar releases a lot of educational content, including online courses on hacking and cybersecurity, and tweets frequently on the latest bugs, malware and vulnerabilities.

5. Troels Oerting 

Followers: 6K

Posting Frequency: 1-2 a day

Favorite topics: Privacy, Security

Troels is Head of the Centre for Cybersecurity at the World Economic Forum, with an extensive background in policy and a long career fighting cybercrime as Head of European Cybercrime Centre and Acting Head of the Counter Terrorist and Financial Intelligence Centre at Europol. His tweets are focused on macro trends and societal impact of technology on everyday life. By following him you will always stay up to date on the latest developments in cyber crime.

6. Joseph Blankenship

Followers: 1.5K

Posting Frequency: Daily

Favorite topics: Trends, Industry Research

Joseph is a leading research analyst at Forrester focusing on security infrastructure and operations, AI for cybersecurity, email security, distributed denial of service (DDoS), and network security. Joseph has over 12 years of hands-on industry experience including product marketing roles at Solutionary (NTT Security), McAfee (Intel Security), Vigilar, and IBM. He frequently tweets about the latest research, findings and developments in cybersecurity.

7. Mike Rothman

Followers: 9.7K

Posting Frequency: 1-2 a week

Favorite topics: Cloud Security, DevSecOps 

Mike specializes in cornerstone aspects of security, such as protecting networks and endpoints, security management, and compliance. He is a sought out speaker and the author of the highly regarded, “The Pragmatic CSO” book that you should definitely add to your reading list. His tweets focus on cloud security and DevSecOps, and he frequently talks about the way enterprises can achieve security maturity in the cloud.

8. Dr. Magda Chelly

Followers: 8K

Posting Frequency: 2-3 a day

Favorite topics: Cybersecurity, Privacy, Risk Management

Magda Lilia Chelly is a “CISO on demand” for a wide array of companies, from medium size enterprises to top Fortune 500 companies. Magda is passionate about human interaction with technology, diversity and cultural impacts on privacy and security controls.

Magda frequently tweets on women in security, diversity and inclusion, as well as the latest developments on the cyberfront and retweets interesting posts by other pros in the field.

9. Shira Rubinoff

Followers: 51K

Posting Frequency: Daily

Favorite topics: Blockchain, Cyber, Social Media, Human Factors of Cybersecurity

Shira is a world-renowned cybersecurity expert specializing in the human factors of information technology and security. A seasoned keynote speaker, influencer and serial entrepreneur, Shira holds several patents in areas related to the application of psychology in cybersecurity. Follow her for the latest updates on how humans fit into the cybersecurity puzzle.

10.  Raj Samani 

Followers: 9.6K

Posting Frequency: Daily

Favorite topics: Cybercrime, Malware

Raj Samani is Chief Scientist at McAfee. He specializes in cybercrime and has assisted multiple law enforcement agencies in a variety of cybercrime cases. Currently, he serves as a special advisor to the European Cybercrime Centre in The Hague. 

Samani has been recognized for his contribution to the computer security industry through numerous awards, including the Infosecurity Europe Hall of Fame. He is also a prolific writer and  co-author of “Applied Cyber Security and the Smart Grid” and the “CSA Guide to Cloud Computing,” as well as technical editor for numerous other publications. Samani tweets on anything that deals with malware and ransomware and common attack vectors, including email and social media.

11. Samy Kamkar

Followers: 9.6K

Posting Frequency: 1-2 a week

Favorite Topics:

Samy Kamkar is an American privacy and security researcher, a celebrity computer hacker, and a famous whistleblower and entrepreneur. He is best known for high-profile hacking exploits, especially as the creator of the fastest spreading virus of all time, the MySpace worm Samy, and SkyJack, a method for hijacking drones. If that’s not enough, he also created Evercookie, a tool that was used by the National Security Agency (NSA) to track anonymous Tor users. 

In addition to Twitter, Samy writes a highly regarded cybersecurity blog where he publishes detailed research about the latest malware and vulnerabilities he discovers.

12. Kevin David Mitnick

Followers: 253K

Posting Frequency: 3-4 a week

Favorite Topics: Hacking, Vulnerabilities, PenTesting

Kevin Mitnick is probably the world’s best known hacker whose career is worthy of a Hollywood Blockbuster. He is a highly controversial figure within the cybersecurity space and notorious for his high-profile 1995 arrest and consequent sentence for various computer-related crimes.

Nowadays, Mitnick is a top paid security consultant, public speaker and author. In addition, Mitnick serves as a security consultant for a wide array of Fortune 500 companies and the FBI. He performs pentesting services for the world’s largest companies, and teaches Social Engineering classes to dozens of enterprises and government agencies all over the world. 

Kevin also created the world-leading cybersecurity awareness training. Follow him for the latest updates on spam, content-borne and email attacks, phishing, spear phishing, malware, ransomware and social engineering.

13. Adam Levin

Followers: 253K

Posting Frequency: 3-4 a day

Favorite Topics: Identity Theft, Phishing, Social Engineering, Hacking

Adam is an expert on identity management and identity theft resolution. He writes a weekly column for the Huffington Post and, and frequently contributes to other major media outlets. Adam has over 40 years of experience in security, privacy, personal finance, real estate and government service. Adam’s speaks and writes on a wide array of subjects, including a broad range of security and personal finance topics, privacy issues and the “Internet of Things,” protecting data in a world of connected devices and identity theft.  

14. Chuck Brooks

Followers: 10K

Posting Frequency: 3-4 a day

Favorite Topics: AI, IOT, Homeland security, cyber security

Named a “Top 50 social influencer in risk and compliance” by Thomson Reuters, Chuck is a recognized thought leader, influencer and technology evangelist. His articles are frequently published in Forbes, Huffington Post, InformationWeek, MIT Sloan Blog, and Computerworld. On Twitter, Chuck frequently shares articles from all over the web on cybersecurity topics, as well as his opinions on the latest developments in the field.

Can you think of someone who should be added to our list? Let us know in the comments below!



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