Top 90 Cyber Security Influencers in 2025

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Cyber Security Influencers

Here are Top 90 Cyber Security Influencers

1. Maddie Stone

Bio Security Researcher. Previously Google Project Zero and TAG | 0days all day. Love all things bytes, assembly, and glitter. she/her. ****@gmail.comTwitter Handle @maddiestoneTwitter Followers 64KType Micro Get Email Contact

2. Steve Morgan

Bio Founder of Cybersecurity Ventures, Editor-in-Chief at Cybercrime Magazine, Executive Producer at Cybercrime Radio. Researcher, Publisher, Journalist, Author. ****@cybersecurityventures.comTwitter Handle @cybersecuritysfTwitter Followers 19.9KType Micro
cybersecurityventures.com + Follow Get Email Contact

3. Teri Radichel

Bio CEO @2ndSightLab | Cybersecurity Author Pentester Instructor | AWS Security Hero l GSE 240 | IANS Faculty | Security How To: https://t.co/cFTkNPKZVe ****@infosec.exchangeTwitter Handle @teriradichelTwitter Followers 10.3KType Micro
2ndsightlab.medium.com + Follow Get Email Contact

4. Katie Moussouris

Bio @LutaSecurity CEO @payequitynow MIT&Harvard visiting scholar, @MasonNatSec fellow, 1/2 Chamoru, hacker @k8em0.bsky.social Legacy blue check ****@LutaSecurity.comTwitter Handle @k8em0Twitter Followers 115.3KType Macro Get Email Contact

5. Marcus J. Carey

Bio Hope Dealer. Hacker. Husband, Father, Author, Artist, Mentor, & Inventor. @TribeOfHackers, ex-@usnavy @nsagov @threatcare.Twitter Handle @marcusjcareyTwitter Followers 52.6KType Micro Get Email Contact

6. Kevin Mitnick

Bio Chief Hacking Officer @knowbe4, Security Consultant, Public Speaker, & Author Whistling ICBM launch codes since 1988 ****@mitnicksecurity.comTwitter Handle @kevinmitnickTwitter Followers 286.3KType Macro Get Email Contact

7. Troy Hunt

Bio Creator of @haveibeenpwned. Microsoft Regional Director. Pluralsight author. Online security, technology and “The Cloud”. Australian. ****@troyhunt.comTwitter Handle @troyhuntTwitter Followers 237.4KType Macro
troyhunt.com + Follow Get Email Contact

8. Dr Magda Chelly

9. Daniel Miessler

Bio AI | SECURITY | MEANING ➡️ HUMAN FLOURISHING⚒️Founder of UL?Creator of Fabric, ThresholdHuman 2.0: ??⬛️⬛️⬛️ Human 3.0?Apple, RH, IOActive, HP, Army ****@unsupervised-learning.comTwitter Handle @DanielMiesslerTwitter Followers 139.3KType Macro
danielmiessler.com/t/Informa.. + Follow Get Email Contact

10. Shira Rubinoff

Bio #Cybersecurity & #Blockchain #Advisor, #ThoughtLeader #KeynoteSpeaker & #AuthorTop ranked #Influencer globally in cybersecurity #AI? YouTube/ShiraRubinoffTVTwitter Handle @shirastweetTwitter Followers 57.3KType Micro Get Email Contact

11. Lesley Carhart

Bio ICS DFIR @dragosinc, martial artist, marksman, humanist, Lvl14 Neutral Good rogue, USAF Ret. Tweet *very serious* things about infosec. Thoughts mine. They/them ****@gmail.comTwitter Handle @hacks4pancakesTwitter Followers 158.7KType Macro
tisiphone.net + Follow Get Email Contact

12. Eva

Bio Director of Cybersecurity @EFF / Co-founder of @stopstalkerware/ My tweets are my own, not my employers’ / I did a TED talk once / ****@eff.orgTwitter Handle @evacideTwitter Followers 185.3KType Macro Get Email Contact

13. Bruce Schneier

Bio Bruce Schneier is an internationally renowned security technologist and author. Described by The Economist as a "security guru" ****@schneier.comTwitter Handle @schneierblogTwitter Followers 146.4KType Macro
schneier.com/tag/cybersecurity + Follow Get Email Contact

14. Eugene Kaspersky

Bio CEO of @Kaspersky. 30+ years in #cybersecurity. Views are my own ****@kaspersky.comTwitter Handle @e_kasperskyTwitter Followers 187KType Macro Get Email Contact

15. Alex Stamos

Bio You can find me at:https://t.co/Enct5hx8bShttps://t.co/CuE5u72rhW ****@stanford.eduTwitter Handle @alexstamosTwitter Followers 97.7KType Micro Get Email Contact

16. Jeff Moss

Bio https://t.co/xlcg512W5zFounder Black Hat & DEF CON. CISA Cyber Security Advisory Council, UK Gov Cyber Advisory Board (He/Him) ****@defcon.orgTwitter Handle @thedarktangentTwitter Followers 109.7KType Macro Get Email Contact

17. Kevin Beaumont

Bio https://t.co/r8moXSpOva. I create cyber weather. Follow me: https://t.co/vdIisQz5hgTwitter Handle @GossiTheDogTwitter Followers 151.1KType Macro Get Email Contact

18. hackerfantastic.x

Bio Co-Founder @myhackerhouse cyber security assurance & hacker training ~ ISBN9781119561453 ~ a book on professional hacking. Offensive Lua project. ****@hacker.houseTwitter Handle @hackerfantasticTwitter Followers 102.1KType Macro Get Email Contact

19. Robert Herjavec

Bio Dad, Husband, Founder & CEO of global cybersecurity firm @Cyderes, Shark on ABC’s Shark Tank, Dragon on CBC's Dragon's Den. Best-Selling Author. ****@herjavec-entertainment.comTwitter Handle @robertherjavecTwitter Followers 798.2KType Macro Get Email Contact

20. Ed Skoudis

Bio Pres. SANS Technology Institute College. SANS Fellow. CEO @CounterHackSec. Repeated @RSAConference Keynoter. IANS Faculty. BoD @manasquanbank & https://t.co/WD7vkoH5lH. ****@counterhack.comTwitter Handle @edskoudisTwitter Followers 62.4KType Micro Get Email Contact

21. Joseph Steinberg

Bio CyberSecurity Expert Witness and Board Member.Lecturer, Columbia University.Twitter Handle @JosephSteinbergTwitter Followers 70.3KType Micro Get Email Contact

22. Dr. Anton Chuvakin

Bio Information security - #SIEM, #DFIR, #EDR formerly at Gartner! Now @GoogleCloud Office of the #CISO; host of @CloudSecPodcast https://t.co/VpKtfz8nXG ****@chuvakin.orgTwitter Handle @anton_chuvakinTwitter Followers 39.8KType Micro
medium.com/anton-on-security + Follow Get Email Contact

23. Eric Geller

Bio Senior reporter at @CyberSecDive covering all things digital security. I also co-host @hothtakes. | Send me tips: https://t.co/j2VflOTeFS ****@ericjgeller.comTwitter Handle @ericgellerTwitter Followers 77KType Micro Get Email Contact

24. Richard Stiennon

Bio Cybersecurity Industry AnalystCurating all the data on 3,800+ cybersecurity vendors and 10,400+ products. ****@it-harvest.comTwitter Handle @stiennonTwitter Followers 45.3KType Micro Get Email Contact

25. Katie Nickels

Bio Director of Intel at @redcanary. SANS Certified Instructor for FOR578: CTI. Senior Fellow at @CyberStatecraft. She/her. Mastodon: @****@infosec.exchangeTwitter Handle @likethecoinsTwitter Followers 55KType Micro Get Email Contact

26. Kate Brew

Bio Mom, Editor of corp #cybersecurity blog. Moderate common sense engineer #owasp #lasconatx @GeorgiaTech alum. Hard working and boring ?as far as you knowTwitter Handle @securitybrewTwitter Followers 29.5KType Micro Get Email Contact

27. Nicole Perlroth

Bio cyber raconteur | bestselling author "This Is How They Tell Me The World Ends" | prev: cyber @nytimes | now: putting my $ where my mouth is https://t.co/XkW041gI8F ****@gmail.comTwitter Handle @nicoleperlrothTwitter Followers 91.8KType Micro Get Email Contact

28. Adam Levin

Bio Consumer advocate. “What the Hack with Adam Levin” podcast. Author of Swiped. Co-founder https://t.co/fceE6yV9dx, and founder @CyberScout ****@adamlevin.comTwitter Handle @adam_k_levinTwitter Followers 59.2KType Micro
adamlevin.com/cybersecurity + Follow Get Email Contact

29. Wendy Nather

Bio ****@cisco.comTwitter Handle @wendynatherTwitter Followers 33.9KType Micro Get Email Contact

30. Jackie Singh

Bio Infosec Pro. Writer. Artist. Formerly @JoeBiden. Pro-Democracy. Anti-Authoritarian. Anti-Extremist. Follow: @threatsdotwatchTwitter Handle @hackingbutlegalTwitter Followers 36.5KType Micro Get Email Contact

31. Eric Vanderburg

Bio Cybersecurity, Privacy, and Tech Leader, Author, Consultant, and Speaker, VP, Cybersecurity @TCDI https://t.co/yTSAaGzEGy Opinions are my own. ****@vanderburg.comTwitter Handle @evanderburgTwitter Followers 51.5KType Micro Get Email Contact

32. Rob Fuller

Bio Dad / Husband / Marine / Student / Teacher / IAM, Red Team, CTI Director / @Hak5 / @NoVAHackers / @SiliconHBO / @NationalCCDC / @MARFORCYBER AuxiliaryTwitter Handle @mubixTwitter Followers 81.3KType Micro Get Email Contact

33. Ray

Bio •He/him • Assoc Producer Emeritus: @DarknetDiaries Cybersecurity Researcher •Twitter Handle @rayredactedTwitter Followers 56.2KType Micro Get Email Contact

34. Eleanor Dallaway

Bio Tech journalist.Founder: Assured Intelligence.Published:The Guardian,The Times,The Sunday Times,Infosecurity,Imbibe. Lover of weekends,travel, sunsets & my boys ****@assured.co.ukTwitter Handle @eleanordallawayTwitter Followers 17.6KType Micro Get Email Contact

35. Robert M. Lee

Bio Co-Founder & CEO @DragosInc | SANS #FOR578 & #ICS515 course author & Faculty Fellow |@_LittleBobby_ writer | NSA & USAF Veteran ****@dragos.comTwitter Handle @robertmleeTwitter Followers 79.1KType Micro Get Email Contact

36. Window Snyder

Bio Founder and CEO of Thistle Technologies @****@infosec.exchangeTwitter Handle @windowTwitter Followers 21.2KType Micro Get Email Contact

37. Marc Goodman

Bio Global security adviser and futurist. Focused on the disruptive impact of advancing tech on security, business and intl affairs. NY Times best selling author. ****@marcgoodman.netTwitter Handle @futurecrimesTwitter Followers 16.8KType Micro Get Email Contact

38. Rinki Sethi

39. Brute Logic

40. Briain Ó hEoghanáin

Bio CEO of @bhconsulting, Head of Ireland's CSIRT @irisscert, & former Special Advisor on CyberSecurity to Europol. @****@mastodon.social PGP ID 0xF1B5CF7DTwitter Handle @BrianHonanTwitter Followers 36KType Micro Get Email Contact

41. Tracy Maleeff

Bio #Librarian turned #InformationSecurity professional. #Ginfosec originator. #Philly jawns. Evertonian ⚽️. Your guide up a mountain of information! ?️Twitter Handle @infosecsherpaTwitter Followers 51.1KType Micro
infosecsherpa.medium.com + Follow Get Email Contact

42. Rebecca Herold

43. Richard Bejtlich

Bio Inactive on Twitter since 1 November 2022. Find me here: https://t.co/9xgPCjr0Rq ****@taosecurity.comTwitter Handle @taosecurityTwitter Followers 59.1KType Micro
taosecurity.blogspot.com + Follow Get Email Contact

44. Dan Goodin

Bio Please use this hell site as sparingly as possible. Elmo can't be allowed to succeed. Follow me on Mastodon @****@infosec.exchangeTwitter Handle @dangoodin001Twitter Followers 42.4KType Micro Get Email Contact

45. Chris Vickery

Bio Data breach hunter. InfoSec & Cybersecurity. Personal account.Twitter Handle @vickerysecTwitter Followers 52.1KType Micro Get Email Contact

46. Raj Samani

Bio Chief Scientist @Rapid7 (ex @McAfee) | @cloudsa | Co-author of @CyberGridBook & CSA Guide to Cloud | Advisor @EC3Europol@****@ioc.exchangeTwitter Handle @raj_samaniTwitter Followers 14.4KType Micro Get Email Contact

47. The Javvad Malik

Bio The unholy alliance between information security and cynicism wrapped up in storytelling and youtube. https://t.co/FdvZge3sum ****@j4vv4d.comTwitter Handle @j4vv4dTwitter Followers 16.9KType Micro Get Email Contact

48. Dustin Volz

Bio @WSJ reporter covering cyber and intelligence. Priors w/ @Reuters and @nationaljournal. Free Evan. ****@wsj.comTwitter Handle @dnvolzTwitter Followers 36.8KType Micro Get Email Contact

49. Jane Frankland

Bio Award-winning leader, speaker, bestselling author, awards judge, women’s activist & mum. Helping brands avoid mediocre results in cybersecurity? ****@jane-frankland.comTwitter Handle @janefranklandTwitter Followers 12.2KType Micro Get Email Contact

50. Jake Williams

51. Sivan Tehila

Bio Mom ?‍? Cybersecurity witch living in NYC ? Founder & CEO @onyxiacyber? ? Program Director of Cybersecurity @YU? SUP ?‍♀ Execution is power ? ****@onyxia.ioTwitter Handle @securitywitchTwitter Followers 1.5KType Nano Get Email Contact

52. Lisa Forte

Bio Cyber Security - Partner @redgoatcyber - Climber / Caver. she/herTwitter Handle @lisaforteukTwitter Followers 54.9KType Micro Get Email Contact

53. InfoSanta

Bio She/Her. InfoSec Eng. Thoughts are mine. Writer. Keynote Speaker. LinkedIn Learning Author. ADHDer. Good vibes only. Black and proud. ****@protonmail.comTwitter Handle @stephandsecTwitter Followers 17.7KType Micro Get Email Contact

54. Whitney Champion

Bio lead solutions architect @limacharlieio / founder @Recon_InfoSec / #HackerTracker creator / ♥♥♥ == @eric_capuano, nerdery, rainbows, sweatpants | she/her ??? ****@reconinfosec.comTwitter Handle @shortxstackTwitter Followers 31KType Micro Get Email Contact

55. Keren Elazari

56. Binni Shah

Bio Linux Evangelist, Malwares , Security Enthusiast, Investor, Contrarian , Neurology , Philanthropist , Reformist ,Sigma female.Born to break rules and banality ****@protonmail.comTwitter Handle @binitamshahTwitter Followers 135.3KType Macro Get Email Contact

57. Jeremiah Grossman

Bio InfoSec Pro. Investor (Grossman Ventures https://t.co/CmujDRLWNV). Internet protector. Industry creator. Founded WhiteHat Security & Bit Discovery. BJJ Black Belt. ****@jeremiahgrossman.comTwitter Handle @jeremiahgTwitter Followers 65.1KType Micro Get Email Contact

58. SwiftOnSecurity

Bio computer security person. former helpdesk. Microsoft MVP in Security 2018-2023.Twitter Handle @swiftonsecurityTwitter Followers 414.8KType Macro Get Email Contact

59. Jason Haddix

Bio CEO, CISO, Trainer, Hacker, and Speaker. @arcanuminfosec AI + hacking + sec leadership. ex:BuddoBot-Ubisoft-Bugcrowd-Fortify-HP-Redspin-Citrix.Twitter Handle @jhaddixTwitter Followers 150.5KType Macro Get Email Contact

60. Alan Woodward

Bio Computer Scientist with particular interest in cyber security & quantum technology. ****@surrey.ac.ukTwitter Handle @profwoodwardTwitter Followers 32.8KType Micro Get Email Contact

61. Whitney Merrill

Bio DPO. Privacy/infosec lawyer. Hacker. Fighting for privacy, digital civil liberties & the users. Ex @EA @FTC |views=own| Also at @****@infosec.exchangeTwitter Handle @wbm312Twitter Followers 32.3KType Micro Get Email Contact

62. Christophe Veltsos

Bio University prof. on cyber risk & systemic risk | He/him | Posts/RTs lots on #Covid #LongCovid. Covid is sig. systemic risk. #COVIDisAirborne #MaskUp #IAQ #AirQ ****@mnsu.eduTwitter Handle @drinfosecTwitter Followers 13.5KType Micro
blog.drinfosec.com + Follow Get Email Contact

63. Rik Ferguson

Bio VP Security Intelligence @Forescout, Co-founder @RespectInSec. Futurist, Researcher, Award-winning writer/producer. He/Him. Pussy in bio.Twitter Handle @rik_fergusonTwitter Followers 14.9KType Micro Get Email Contact

64. Kim Nash

Bio Deputy Editor—The Wall Street Journal, Pro Cybersecurity. Corporate and government cybersecurity issues, offensive and defensive ****@wsj.comTwitter Handle @knash99Twitter Followers 8.7KType Nano Get Email Contact

65. Heath Maverick Adams

66. Rafay Baloch

Bio Cyber Security Researcher, Published Author on Cybersecurity, Public Speaker, featured by @Forbes, @BBC, @WSJ - RT ≠ Endorsement ****@gmail.comTwitter Handle @rafaybalochTwitter Followers 21.3KType Micro Get Email Contact

67. Lady G

68. Jobert Abma

Bio I tweet about security and my experience as a hacker. Co-founder of HackerOne (@Hacker0x01). ****@hackerone.comTwitter Handle @jobertabmaTwitter Followers 42.3KType Micro Get Email Contact

69. Chris Parker

Bio Founder https://t.co/BKc0KgUNAv @wimia | Online Privacy, Safety & CyberSecurity | Host of @EasyPreyPodcast Scam and Fraud Prevention ****@whatismyipaddress.comTwitter Handle @chrispcrittersTwitter Followers 23KType Micro Get Email Contact

70. James Arlen

Bio @****@infosec.exchange Infosec Geek, Hacker, Social Activist, Author, Speaker, Parent. VA3MYR. Chief Information Security Officer at https://t.co/0YzMUvV7nWTwitter Handle @myrcurialTwitter Followers 19.1KType Micro Get Email Contact

71. Dr. Alissa Abdullah

Bio Fortune 100 #CSO ~Fmr Deputy CIO @WhiteHouse #44 ~all things cyber ~?Podcasts: Mastering Cyber & CISO 500 ~My thoughts are my own. ~Will work for shoes~Twitter Handle @dralissajayTwitter Followers 5.2KType Nano Get Email Contact

72. Meg West

73. Kenneth Holley

Bio Founder & Chairman, @silentquadrant • Principal Architect of Digital Resilience • Cybersecurity Innovator • Forbes Technology Council Member • Board MemberTwitter Handle @kennethholleyTwitter Followers 45.6KType Micro Get Email Contact

74. Bob Carver

Bio #CyberSecurity #infosec #IoT #privacy #AI #ML #disrupt #startups #Cloud #FutureOfWork #tech #KeynoteSpeaker RT != agreeTwitter Handle @cybersecboardrmTwitter Followers 44.5KType Micro Get Email Contact

75. Theresa Payton

Bio CEO @FortaliceLLC | Advisor to Global Boards | Cybersecurity & Biz Intelligence | @KepplerSpeakers + TEDx | #1 Hot Release Book: Manipulated https://t.co/2nP9eQvmMATwitter Handle @TrackerPaytonTwitter Followers 11.9KType Micro Get Email Contact

76. John Hammond

Bio Cybersecurity Researcher @HuntressLabs || Just Hacking Training @JustHackingCo w/ @ethicalhacker ||https://t.co/UtsNJiyQtS || https://t.co/narO3sz7y6 ****@johnhammond.llcTwitter Handle @_johnhammondTwitter Followers 275.5KType Macro Get Email Contact

77. Swati Khandelwal

Bio Senior #Cybersecurity, #Privacy Reporter For @TheHackersNews | Got Tips? Contact me: ****@thehackernews.comTwitter Handle @swati_thnTwitter Followers 27.8KType Micro Get Email Contact

78. Tim Starks

Bio Sr. reporter @CyberScoopNews. Russia-sanctioned. Ex-@washingtonpost @politico. ****@infosec.exchange, Bluesky timstarks, Threads tstarks2. DM for Signal.Twitter Handle @timstarksTwitter Followers 9.3KType Nano Get Email Contact

79. Ted Demopoulos

Bio Author: Getting Started in #InfosecConsulting (2022), Independent Consultant, Keynote Speaker, #SANS Instructor, Geek, KT1V, I eat & drink, ski, run, etc.Twitter Handle @teddemopTwitter Followers 13.1KType Micro Get Email Contact

80. Daphne Keller

Bio Platform Regulation Director, Stanford Cyber Policy Center. Former Google AGC. This is roughly my zillionth rodeo. ****@stanford.eduTwitter Handle @daphnehkTwitter Followers 30.7KType Micro Get Email Contact

81. Dave Bittner

Bio Host of the CyberWire, Hacking Humans, and Caveat podcasts. Guest on Grumpy Old Geeks pod. Be kind to one another. Seek contentment. @****@hachyderm.ioTwitter Handle @bittnerTwitter Followers 5.6KType Nano Get Email Contact

82. Christina Camilleri

Bio leading trust & safety for @netflix games. prev infosec @riotgames, @bishopfox. part cyborg.Twitter Handle @0xkittyTwitter Followers 6.3KType Nano Get Email Contact

83. Mohit Kumar

Bio Founder @TheHackersNews | Cyber Alchemist | Curious by nature, educator by choice. Disciplined by trading, solution-driven by coding. ****@thehackernews.comTwitter Handle @unix_rootTwitter Followers 32KType Micro Get Email Contact

84. Kelly Shortridge

Bio Senior Director @Fastly | software resilience + modern infosec | ****@hachyderm.io | https://t.co/68itNjq8tL | aka &void;Twitter Handle @swagitda_Twitter Followers 31.6KType Micro Get Email Contact

85. Corelan

86. Jessica Barker

Bio ?? in ??. Human cyber security. Co-Founder @CygentaHQ. Author of the Amazon number 1 best-seller Confident Cyber Security. ****@cygenta.co.ukTwitter Handle @drjessicabarkerTwitter Followers 18.8KType Micro Get Email Contact

87. Jeff Stone

Bio editor @business tracking info ops, scams, hacks + weirdness.Bluesky: https://t.co/DiziPIypyI Signal: 1-716-249-1677 ****@cyberscoop.comTwitter Handle @jeffstone500Twitter Followers 6.7KType Nano Get Email Contact

88. Rob May

89. Adrian Sanabria

Bio ?️ Enterprise @secweekly Podcast,? Founder @bsidesknoxville,?️ Faculty @IANS_Security,? Cooking, ?️ F1, ⛰️ Hiking ****@bsidesknoxville.comTwitter Handle @sawabaTwitter Followers 9.8KType Nano Get Email Contact

90. Ryan Naraine

Bio 🎧 Podcast: https://t.co/ZGEyqy1JhI ✍🏼 Writing: @securityweek🗣️ Conference: @labscon_io ****@gmail.comTwitter Handle @ryanaraineTwitter Followers 27.9KType Micro Get Email Contact

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