Greg Day @GregDaySecurity
SVP & CISO, CyberSecurity Wisdom Ltd. CyberSecurity life timer, Industry Expert, Public speaker....My personal reflections of the cybersecurity industry.... cybersecurity-wisdom.com Somewhere in EMEA...most days! Joined April 2009-
Tweets1K
-
Followers2K
-
Following154
-
Likes255
Do you code in Vibe or manage others that do? How do empower you or them against credential mismanagement? @Secureintent_ai linkedin.com/posts/gregday_…
0
0
2
39
0
View Details
I am excited to join fellow CISOs in Edinburgh next week and feel humbled to have been asked by Pulse Conferences to chair several sessions. I'm looking forward to some enlightening conversations as well as getting to meet some new CISOs!
Reflecting on the past and looking ahead, I've taken the opportunity to revisit my predictions for 2025 and evaluate their accuracy. I'm excited to also share my predictions for 2026! Happy reading! cybersecurity-wisdom.com/content/f/2026…
Excited to launch my new business cybersecurity-wisdom.com CISO advisory and consulting services, as well as public speaking, thought leadership & supporting boards, vendors/partners/VC and startups!
Wondering what the new #threats are for 2026, see what themes will be discussed at #RSAC26 cybersecurity-wisdom.com/content?blog=y
@FlippinPain @RethinkingPain It feels everyone I ever talk to has back pain or some other issue, but very few proactively seem to own and manage it. Take ownership of your pain in 2024 with Flippin Pain!!
For those that missed it about a month ago I completed a charity bike ride (200miles in 5 days) through an NHS organisation flipping pain lnkd.in/eZ_BmAQb This has has had a profound impact on me as a person, both meeting other similar people and…lnkd.in/eYm6eH8t
If you missed the first session. I’m doing a second now at 2pm today! For those that are Rubik’s cube fans I have a special challenge for you!!!! lnkd.in/eVXvvyQZ
Busy first day at #infosec2023, great to see so many of you. Come join us at 11:30 today (day 2) on the #Cybereason stand e60, where I'll be talking about the battle between XDR and the Rubik's cube!
It’s one of the most talked about topics, be it evening news or more tech focused discussion, just how this new evolution of AI chatBOTs is already impacting the world. It was my sincere pleasure to work with Paul on what became a sold out session at…lnkd.in/eUaxzExR
So last week I completed what was both the most amazing and also challenging week. With some other chronic pain patients and some amazing experts in pain management we cycled across the rolling peaks of the Tee’s. Who knew the…lnkd.in/eCd7Pa-G lnkd.in/eEe6d8jq
Todays ride has to be one of the most brutal I’ve ever done. 38 miles may not seem like much but 3500ft clime with some as steep as 1/4. It’s all for great causes: spinal research and pain concern. If you’ve not sponsored me…lnkd.in/emaezwZ5 lnkd.in/eEe6d8jq
Greg Day retweeted
And they're off! 🚲 Our peloton team have set off from Darlington this morning on the first leg of our week long Community Outreach Tour. They'll be arriving in Guisborough later today to help deliver our free seminars at St Nicholas' Church Hall. flippinpain.co.uk/event/2023-pub…
So less than a week to go till I take on this mammoth challenge, firstly I want to say a huge THANK YOU to those that have sponsored me. We have reached an amazing 82% of the goal!!! I really confident we can hit and exceed the target, BUT I really d…lnkd.in/gvrxcpHx
Whilst it’s a crazy week it’s also so nice to catchup with some many great friends made during a long career in cyber security, as well as those made at so many #rsac gone by. But it’s also great to make new connections. Look forward to meeting you…lnkd.in/e2qewZpB
Firstly thank you so much to those of you that have already sponsored me. Words simply don’t describe my gratitude. With two and a bit weeks to go I can now share the actual routes with you 185 miles, and a lot of climbs in 5 days. I’m doing this on…lnkd.in/eZA5NasK
Wow, in the first week we have reached 50% of the target, from judt 50 of you!!!, but I gave known so many of you for so many years that HAVE YET TO CONTRIBUTE! This means honestly the WORLD to me personally, and I know we can have a HUGE Impact on man…lnkd.in/e68yFu3n
Nikki Webb 🖤 @NikkiC360
5K Followers 5K Following I am a fun loving channel manager for the global MSSP @Custodian360. Also part of the @CyberHouseParty @HelplineCyber @nikkic360.bsky.social
Briain Ó hEoghanáin... @BrianHonan
34K Followers 2K Following CEO of @bhconsulting, Head of Ireland's CSIRT @irisscert, & former Special Advisor on CyberSecurity to Europol. @[email protected] PGP ID 0xF1B5CF7D
Dan Raywood @DanRaywood
9K Followers 585 Following 25 years in B2B journalism, 17 years covering cyber. Full time freelance, part time employed at Bora. Sometime writer and analyst. He/Him #COYS
Davey Winder @happygeek
15K Followers 3K Following Senior Contributor @Forbes Contributing Editor @pcpro - [email protected] - "All My Opinions Are Belong To Me"
Tuffer @TufferB
8K Followers 3K Following If some is good, more is better. Primary funds provider for the @truckosaurous project. leader of the Tuffati. Throwerer of balls for @Chump_Dog FBPW
Virus Bulletin @virusbtn
61K Followers 1K Following Security information portal, testing and certification body. Organisers of the annual Virus Bulletin conference. @[email protected]
Eleanor Dallaway @EleanorDallaway
17K Followers 1K Following Tech journalist.Founder: Assured Intelligence.Published:The Guardian,The Times,The Sunday Times,Infosecurity,Imbibe. Lover of weekends,travel, sunsets & my boys
Sarah Armstrong-Smith @SarahASmith75
5K Followers 2K Following Exec Security & Crisis Leader, Global Keynote Speaker, Best Selling Author, Lover of Doggos. Eternal Optimist! Aston Baby. All views my own 🇬🇧
Unit 42 @Unit42_Intel
69K Followers 81 Following The latest research and news from Unit 42, the Palo Alto Networks (@paloaltontwks) Threat Intelligence and Security Consulting Team covering incident response.
Jake Moore @JakeMooreUK
7K Followers 5K Following Global Cybersecurity Advisor at ESET | Former Police Head of Digital Forensics / Cybercrime Officer. Passion for tech, AI, the sea and Dorset
Secureintent.ai @Secureintent_ai
11 Followers 120 Following AI security + developer chaos 💀 Preventing “just for debugging” moments Join our Discord ↓ https://t.co/6cXagdhTGM
Nancy S @sknclprfl365
10 Followers 765 Following wandering thoughts & mutual follows 🌷 100% follow back
Leisure Suit Larry @demagogue_gent
37 Followers 142 Following
JC Gaillard @Corix_JC
11K Followers 10K Following Founder & CEO @CorixPartners @Transform_Sec | Top #Cybersecurity ThoughtLeader & #GRC Ambassador @Thinkers360 | Exec. Fellow @DG_Collective | Advisor & Coach
Ilkin Javadov @IlkinJavadov
23 Followers 38 Following Ethical Hacker | Committee Member at RSAC, Fellow at : Raptors dev, Orchid: Ilkin Javadov on internet, Chapter Lead: OWASP, Ambassador : GCRAI, Limited:place:(
LesleyLee @s6R09otdFz26O
118 Followers 3K Following
Irvriva @Irvriva24707
27 Followers 1K Following
Jakes @jakesj425
22 Followers 256 Following
Daniel Model @model_daniel_80
1 Followers 14 Following
Luke @SkyWalkerSec
10 Followers 104 Following Cyber Threat Intelligence during the day, trainers, watches and video games any other time
Senthil Nathan @nathanaspire
28 Followers 5K Following
Patricia Titti @PatriciaTitti1
7 Followers 386 Following
Zack Ganot @zackganot
317 Followers 2K Following Co-founder & Strategy @ Atlas Privacy | Product Owner @ https://t.co/dWInjkImZG
Oscar Hutton @OscarIHutton
85 Followers 186 Following PhD Student at Loughborough University studying body perception and persistent pain. @MIRAGE_Labs. He/him.
0cT4✌10 @housetwitoct
248 Followers 2K Following Tu sueño y deseo de vivir en el primer mundo se ve frustado por tu comportamiento de tercer mundista...
Brandon Eyring @eyring_brandon
170 Followers 356 Following Ravens and O’s are main topics of my Twitter feed.
Sean Williams 🇺�... @SeanWilliams68
408 Followers 1K Following Implementing and Securing Tech. #AI #CISSP, #CHFI, #VCAP, #MCSE, #MCASAE #MCCAE #vExpert #VMUGLeaders #SPACs Tweets are mine alone, not advice.
SandboxAQ @SandboxAQ
5K Followers 1K Following Leveraging AQ - the powerful compound effects of AI + Quantum technology
Red Sift @redsift
1K Followers 4K Following Red Sift helps the best security teams understand and remediate #CyberSecurity risk before an incident happens.
SLEUTHCON @SLEUTHCON
3K Followers 1K Following SLEUTHCON ‘26 CFP and registration are now open! https://t.co/vRns0Do5xa
EugeneZonda @Eugene_Zonda
645 Followers 3K Following EugeneZonda is a boutique cybersecurity advisory. We focus on delivering tailored cyber solutions and offer advisory, consulting, and strategy services.
Canauri @CanauriSecurity
3K Followers 3K Following Canauri™ automatically detects and stops actively running ransomware attacks. Our solution is delivered through and supported by MSPs and MSSPs.
Beo-B @BeoB15
6 Followers 878 Following
ClevrOne @OneClevr
378 Followers 4K Following Is your #Cloud secure? Are your IAM policies optimized? Need help assessing your cloud environment? A startup, offers expert cloud and cybersecurity services.
Micheal McCollough @MichealMcCollo2
178 Followers 554 Following GVP of Strategic Growth @Imperva leading Global Partner Ecosystem | Global @CRN Channel Chief passionate about #DEI | @DukeFuqua Minority Alumni Advisory Board
J Tyler T Rex Rohrer @Remotely_TREX
514 Followers 5K Following Software. Fishing. Physics. Math. More fishing. optimist e/acc
Security Sisters Netw... @SSNetworkLLC
74 Followers 768 Following
CyberTrends ITA @trends_cyber
2K Followers 831 Following Cybersecurity Trends Edizione italiana della rivista internazionale sulla cybersecurity
Alessio Mattei 💡 @alessiomtt
217 Followers 1K Following #AI #Cybersecurity #Socialengineering #HUMINT #OSINT & #SOCMINT Researcher | Human Hacking | things you can't explain to mom and dad | [email protected]
BUFFERZONE Security @BufferZoneSec
636 Followers 4K Following BUFFERZONE is a patented containment solution that isolates threats to defend #endpoints from #malware, #zerodays, #ransomware, #drivebays and more.
Megan @mgnfltn
210 Followers 2K Following #Cybersecurity builder. Former @IBM, @sassoftware Recently joined Twitter for cyber and tech takes.
Orane @KlarifId
270 Followers 792 Following GRC Project Manager | CAPM | NIST | AIC Deploying autonomous care agents into 5,000 Ontario clinics
Prashant Mahajan @prashantmahajan
571 Followers 2K Following Founder, https://t.co/1k3trbFehQ | Shifting #Privacy Left | Best static code analysis technology for #privacy & #dataprotection | Scale #privacyengineering
Rodrigo @RdrgAr
4 Followers 280 Following
Harry McLaren @cyberharibu
2K Followers 1K Following Cybersecurity/InfoSec | Co-founder of @SecScotland | Head of Security Engineering | He/Him | Dyslexic
Marcello Dal Degan @drvai
254 Followers 3K Following
Eric @exalted
2K Followers 4K Following Infosec & AI | Learning Poker GTO, Badminton, Web3. Emerald-hearted JG, love hadoukens. #sagamobile
Kimberly La Mantia @KLaMantia_pro
7 Followers 3K Following Globally reputed Strategist, Risk Manager and Negotiator. Wall Street Banking veteran plus Emerging Technology, Defense and Energy. @K_LaMantia93🏠
Cybertech Global @Cybertech_Globl
4K Followers 2K Following From Tel Aviv to Tokyo, Singapore, Panama, and beyond, Cybertech stands as the premier global platform for the cyber ecosystem
SIM Detroit @SIMDetroit
1K Followers 5K Following Michigan’s community of 360+ IT executives connecting leaders, driving innovation, and giving back to strengthen #Detroit communities!
Cristina Gaia @cristinagaia
2K Followers 4K Following I do marketing for a living, ex @CyberArk, @CheckPointSW @cybereason @FSecure | Co-founder & Board member @WomenForSec | Ideas are my own
@mikko @mikko
225K Followers 947 Following Researcher and a best-selling author. Keynote talks at RSA, Black Hat & DEF CON. TED Speaker. Chief Research Officer at Sensofusion.
Briain Ó hEoghanáin... @BrianHonan
34K Followers 2K Following CEO of @bhconsulting, Head of Ireland's CSIRT @irisscert, & former Special Advisor on CyberSecurity to Europol. @[email protected] PGP ID 0xF1B5CF7D
Dan Raywood @DanRaywood
9K Followers 585 Following 25 years in B2B journalism, 17 years covering cyber. Full time freelance, part time employed at Bora. Sometime writer and analyst. He/Him #COYS
Davey Winder @happygeek
15K Followers 3K Following Senior Contributor @Forbes Contributing Editor @pcpro - [email protected] - "All My Opinions Are Belong To Me"
Virus Bulletin @virusbtn
61K Followers 1K Following Security information portal, testing and certification body. Organisers of the annual Virus Bulletin conference. @[email protected]
Eleanor Dallaway @EleanorDallaway
17K Followers 1K Following Tech journalist.Founder: Assured Intelligence.Published:The Guardian,The Times,The Sunday Times,Infosecurity,Imbibe. Lover of weekends,travel, sunsets & my boys
Mandiant (part of Goo... @Mandiant
129K Followers 4K Following We’re determined to make organizations secure against cyber threats and confident in their readiness.
Jessica Barker MBE @drjessicabarker
18K Followers 2K Following 🇬🇧 in 🇺🇸. Human cyber security. Co-Founder @CygentaHQ. Author of the Amazon number 1 best-seller Confident Cyber Security.
Unit 42 @Unit42_Intel
69K Followers 81 Following The latest research and news from Unit 42, the Palo Alto Networks (@paloaltontwks) Threat Intelligence and Security Consulting Team covering incident response.
SC Media @SCMagazine
119K Followers 2K Following The official Twitter feed for all things IT security. A CyberRisk Alliance Resource.
The Hacker News @TheHackersNews
1.6M Followers 2K Following The #1 trusted source for cybersecurity news, insights, and analysis — built for defenders and trusted by decision-makers.
BSides London @BSidesLondon
11K Followers 1K Following 📅 12th Dec 2026 | 📍 Novotel London West Grassroots-driven security conference. Built by the local InfoSec community, for the community. #BSidesLDN2025
CISA Cyber @CISACyber
299K Followers 73 Following Part of @CISAgov, we respond to major incidents, analyze threats, and exchange critical cybersecurity information with partners around the world.
Pain Revolution @PainRevolution
6K Followers 520 Following It's time for a #PainRevolution in the way we talk about, and treat, persisting pain.
Flippin’ Pain @FlippinPain
6K Followers 554 Following Award-winning public health movement. We share the (often surprising) science behind persistent pain to the public, patients & professionals. Knowledge = power!
British Airways @British_Airways
1.4M Followers 84K Following This is the official British Airways account. Please engage with us via this account only. For help, please get in touch or visit: https://t.co/GpmEQmrh9Z
craftginclub @craftginclub
50K Followers 1K Following The UK's #1 subscription club for gin lovers. Every month, we send our members the world’s finest craft gins, along with mixers, foodie treats and our club mag.
Security Roundtable @SecurityRT
3K Followers 244 Following Cybersecurity for business leaders. In a world of threats, follow us for ideas. Powered by #PaloAltoNetworks
Ciara-Alice golf @GolfCiara
576 Followers 411 Following 19 years old, HI +0.9 Woburn GC member . Type 1 diabetic Loughborough Sept 2022
Jane Frankland @JaneFrankland
12K Followers 7K Following Award-winning leader, speaker, bestselling author, awards judge, women’s activist & mum. Helping brands avoid mediocre results in cybersecurity👇
Haider Pasha @PashaBytes
99 Followers 19 Following Cyber security evangelist, thought leader, and trusted business advisor with Palo Alto Networks. No Cyber Security FUD, just facts. Tweets are my own.
Life at Palo Alto Net... @WeHireLeaders
2K Followers 324 Following @PaloAltoNtwks is the global #cybersecurity leader. Learn about #LifeAtPaloAltoNetworks and the work we do to make the world safer and more secure. 🧡
Hub Culture @hubculture
5K Followers 5K Following Collaborate in a virtual state. Our mission is to enhance collective consciousness ecosystems with a new kind of money, Ven. Visit https://t.co/Z0cZ6gu0iX
John Kindervag @Kindervag
8K Followers 6K Following Creator of Zero Trust. Chief Evangelist at Illumio. Former SVP at ON2IT. Former Field CTO at Palo Alto Networks. Former Forrester analyst.
Life at Palo Alto Net... @WeHireLdrsEMEA
503 Followers 238 Following We’re a global leader in enterprise #cybersecurity. We’re bold, creative, and dedicated. Are you? We’re hiring throughout Europe, the Middle East & Africa.
queuefortheloo @q4theloo
232 Followers 78 Following Aiming to get more women into cybersecurity so that it becomes more like normal life and we have to #queuefortheloo
Cyber Warrior Princes... @CyberWarriorPr1
586 Followers 68 Following Just a couple of security princesses, looking to have some white hat #podcast fun.
BartS 🇪🇺 🇳�... @BART_SOMSEN
707 Followers 2K Following |Sport|Sponsorship|Brand|Golf|F1|Travel|Wine|Bright Trousers|CFC|Tech|Biz| RT does not mean I endorse content| Personal tweets
Internet of Shit @internetofshit
404K Followers 235 Following screw it, put a chip in it. say hello: [email protected]
Palo Alto Networks Gl... @PANWGovPolicy
2K Followers 282 Following Official account of Palo Alto Networks global policy team. Tweeting views & news about policies worldwide impacting cybersecurity and trust in the digital age
Keren Elazari @k3r3n3
20K Followers 5K Following Friendly Hacker | Geek Pride 🌈 | Cyber Punk | Security Researcher | Founder @Bsidestlv & @Ladiescyber | @TEDtalks Speaker | Faculty @icrctau
el cookiemonster @el_ckmnstr
180 Followers 204 Following assistant to the regional manager • disliking all those LinkedIn bios that start with a present participle •
Richard Fry @ritchf
32 Followers 83 Following
Dave Peranich @DavePeranich
453 Followers 52 Following President @ Netskope | Cloud Security Advocate
Tony Cole @NoHackn
1K Followers 932 Following CTO | Cybersecurity Executive | Board Member & Qualified Technology Expert (QTE) | Advisor | Strategist | CISSP
Mark McLaughlin @MarkatPANW
1K Followers 32 Following Vice Chairman of @PaloAltoNtwks. Love my family and fly fishing.
Misha Glenny @MishaGlenny
20K Followers 4K Following Rector of the Institute for Human Sciences in Vienna (https://t.co/aUUQ63QTqO) Author of McMafia, DarkMarket and the Balkans. Speaker on Organised Crime, CyberSec, Geo-politics.
Bryce Boland @BryceBoland
582 Followers 671 Following 25+ years helping secure all the things. Opinions are my own. mastadon:[email protected]
Jamie Brummell (moved... @jamiebrummell
1K Followers 3K Following Dad • Gamer • Humanist • Founder & CTO @SocuraMDR • MDR • SOC • Detection Engineering • DFIR
J8y @JoeBaguley
10K Followers 3K Following CTO EMEA, Broadcom : Tech, EVs (Road & Track), Motorsports (Trustee @MissionMotorspt), Energy, Science, Sustainability, Fireworks, eMTBs, Gadgets
Share Radio @ShareRadioUK
9K Followers 4K Following Britain's money/business radio, 100% online worldwide. News, views, entertains, commentaries - & 8,000 audio programme library - sign in to listen free!
Dr. Eric Cole @drericcole
34K Followers 703 Following On a mission to bring my message to millions: to make cyber space a safe place to live, work, and raise a family.
Rory Cellan-Jones @ruskin147
294K Followers 7K Following #SophieFromRomania book out now! https://t.co/UPEvwIY2rx Movers and Shakers podcast Ruskin Park out in paperback https://t.co/Voo7uXA2IM
Kevin G Isaac @KevinGIsaac
701 Followers 238 Following I lead great teams and great companies to unlock their true potential. CEO CxO CRO Advisor, Mentor, NED . All tweets are my own.
Simon PG Edwards @spgedwards
757 Followers 44 Following CEO, SE Labs (@SELabsUK) 👉 https://t.co/ExCoDFiZJa (while Twitter faces an uncertain future)
Arnaud KOPP @akopp92
227 Followers 363 Following
Dark Reading @DarkReading
352K Followers 49 Following One of the most widely read and trusted cybersecurity news sites, providing IT security professionals informed insights into the latest news and trends.
Quentyn Taylor @quentynblog
4K Followers 1K Following This account may not constitute any comment in a professional capacity for any organisation that I may represent. Find me over at @quentyn.bsky.social
The Economist @TheEconomist
26.1M Followers 150 Following News and analysis with a global perspective, since 1843. We’re here to help you understand the world around you. Subscribe here: https://t.co/RpUQAAnhog
FireEye EMEA @FireEyeEMEA
554 Followers 189 Following For all the latest news and research from the EMEA team at @FireEye - The leader in stopping today's new breed of cyber attacks.
FireEye University @FireEyeU
963 Followers 620 Following Official Twitter account of the @FireEye Intern & University Grad Program. The Spark Starts Here!Trends for United States
You might like
Palo Alto Networks
@PaloAltoNtwks
129K Followers
Palo Alto Networks Gl...
@PANWGovPolicy
2K Followers
René Bonvanie
@renebonvanie
2K Followers