Kevin Jonkers (@gillroy) header
Kevin Jonkers (@gillroy) profile picture

Kevin Jonkers

@gillroy

IT security guy, Director Managed Services @FoxIT

Joined January 2009
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  • Followers308
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Photo by Kevin Jonkers (@gillroy)Photo by Kevin Jonkers (@gillroy)Photo by Kevin Jonkers (@gillroy)Photo by Kevin Jonkers (@gillroy)Photo by Kevin Jonkers (@gillroy)Photo by Kevin Jonkers (@gillroy)Photo by Kevin Jonkers (@gillroy)Photo by Kevin Jonkers (@gillroy)Photo by Kevin Jonkers (@gillroy)
Kevin Jonkers retweeted
Yun (@YunZhengHu) profile picture
Yun@YunZhengHu28 Dec 2022
In this blog post, we share our research on version identification of Citrix ADC and Gateway servers and how we measured the update adoption on the internet for CVE-2022-27510 & CVE-2022-27518, two critical CVEs with a CVSS v3 score of 9.8 blog.fox-it.com/2022/12/28/c…
CVE-2022-27510, CVE-2022-27518 – Measuring Citrix ADC & Gateway version adoption on the Internet

CVE-2022-27510, CVE-2022-27518 – Measuring Citrix ADC & Gateway version adoption on the Internet

Authored by Yun Zheng Hu Recently, two critical vulnerabilities were reported in Citrix ADC and Citrix Gateway; where one of them was being exploited in the wild by a threat actor. Due to these vul…

blog.fox-it.com
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Discover what Dutch organisations think about the current state of #cybersecurity. Read it in Deloitte’s cyber survey. deloi.tt/35FeJZH #futureofsecurity
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Since you’ll probably not be going anywhere this Christmas, here’s a fun way to spend the time!
Deloitte (@Deloitte) profile pictureDeloitte
@Deloitte9 Dec 2020
Looking for an opportunity to showcase your hacking skills? This December join our Hacky Holidays games and capture all the flags! #cybersecurity #CTF #capturetheflag #ethicalhacking #hackyholidays deloi.tt/3gCKTcZ
De campagne #GameChangers is vandaag live gegaan, waar Deloitte samen met Politie Nederland aan heeft gewerkt. We moedigen jongeren tussen de 12 en 18 jaar aan om hun #cyberskills te verbeteren met uitdagende games en opdrachten: deloi.tt/2VOmKWL
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Very proud to be a part of this great initiative by Eye and @CyberveiligNL!! volkskrant.nl/nieuws-achterg…
Tientallen bedrijven bieden gratis hulp voor ziekenhuizen in strijd tegen hackers

Tientallen bedrijven bieden gratis hulp voor ziekenhuizen in strijd tegen hackers

Tientallen Nederlandse cybersecuritybedrijven vormen een coalitie om ziekenhuizen kosteloos bij te staan tijdens de coronacrisis. Het gaat om een initiatief van het nieuw opgerichte beveiligingsbed...

volkskrant.nl
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Trots dat we hier vanuit Deloitte een bijdrage aan leveren!
Landelijk Parket (@landelijkparket) profile pictureLandelijk Parket@landelijkparket30 Oct 2019
Pilot: Twintigtal bedrijven helpt justitie jonge hackers op het rechte pad te krijgen om.nl/@106971/pilot-twintigt…
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fd.nl/opinie/1316434/het-is-…

Het is tijd voor een Deltaplan Cybersecurity

Opinie | Bibi van den Berg is hoogleraar aan de Universiteit Leiden en Inge Philips-Bryan is partner bij Deloitte

fd.nl
Our very own @olafhartong will be speaking at @DerbyCon this weekend - if you are there, do check out his talk on "Endpoint Detection Super Powers on the cheap, with Sysmon".
Image from Jelle Niemantsverdriet (@jelle_n)
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An analogy in Infosec is the analyst that sees only incoming attacks against their web servers & therefore decides that purchasing a WAF should have highest priority
Image from Florian Roth ⚡️ (@cyb3rops)
Image from Florian Roth ⚡️ (@cyb3rops)
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Wow @FD_Nieuws, dit moet toch echt de slechtste infographic over hacken zijn die ik in lange tijd gezien heb
Image from Kevin Jonkers (@gillroy)
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What a time to be alive... nu.nl/gadgets/5754531/zelfst…
Zelfstrikkende Nike-sneakers lopen vast door softwareprobleem

Zelfstrikkende Nike-sneakers lopen vast door softwareprobleem

De nieuwe zelfstrikkende Nike Adapt BB-sneakers lopen bij sommige gebruikers met een Android-telefoon vast.

nu.nl
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Bellingcat is recruiting an investigator/trainer based in The Netherlands, and running training workshops across the world. If you like open source investigation and travel, it's the job for you. bellingcat.com/resources/eve…
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Kevin Jonkers retweeted
Olaf Hartong (@olafhartong) profile picture
Olaf Hartong@olafhartong23 Dec 2018
Apart from having a lot of fun playing #KringleCon I also have to tip my@hat for @edskoudis and his co-creators. A tremendous amount of work must have gone into this. Impressive stories and detail like in the #Bloodhound challenge.
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What’s better than making the world a safer place? Doing it by helping mutual clients with my former @foxit colleagues! Thanks for the cake guys, looking forward to more great things next year!
Image from Kevin Jonkers (@gillroy)
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Trots dat we met @DeloitteNL een bijdrage kunnen leveren aan Hack_Right! nos.nl/artikel/2264042-hacke…
Hacker Erik gaf de hele school vrij en moest voor straf op stage

Hacker Erik gaf de hele school vrij en moest voor straf op stage

Jonge cybercriminelen moeten op straf-stage bij IT-experts. Zo leren ze onder meer hoeveel schade ze aanrichten.

nos.nl
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Kevin Jonkers retweeted
Olaf Hartong (@olafhartong) profile picture
Olaf Hartong@olafhartong6 Dec 2018
It's out there! I've released my ThreatHunting app on GitHub github.com/olafhartong/Threa… and Splunkbase splunkbase.splunk.com/app/43… My BlackHat Arsenal presentation and demovideo are available here github.com/olafhartong/Prese… #sysmon #dfir #threathunting #blueteam #splunk
Image from Olaf Hartong (@olafhartong)
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Kevin Jonkers retweeted
Freddy Dezeure (@FDezeure) profile picture
Freddy Dezeure@FDezeure4 Dec 2018
This is great! Analytics as an actionable way to search for the TTPs that are relevant to your specific threats. MITRE ATT&CK and CAR make a great combined resource. Sharing knowledge also becomes easier.
ATT&CK (@MITREattack) profile pictureATT&CK@MITREattack3 Dec 2018
You asked, we listened. Our sister project, Cyber Analytics Repository (CAR), was migrated to Github as we start to reinvigorate the project to make it easier to contribute. Check out @jwunder's blog post (medium.com/mitre-attack/cybe…) and the new site: car.mitre.org/
Image from ATT&CK (@MITREattack)
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In addition, map your regular red team adversary as a 'group' as well. Ingest their IOCs as a regular feed before they attack. You can then not only measure their TTPs on your defenses, but also your ability to properly process received threat intelligence and how you act on it.
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Really proud to watch @olafhartong and @_vivami present at @MITREattack #ATTACKcon on how we do Red♥Blue teaming at @DeloitteNL Video stream had some issues but hopefully full recording will be online later. Want to know more about our team? Just get in touch!
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