Jan-Pieter Cornet (@johnpc42) profile picture

xs4all sysadmin, programmer, hacker, rock-climber and father

Joined September 2010
Photo by Jan-Pieter Cornet (@johnpc42)Photo by Jan-Pieter Cornet (@johnpc42)Photo by Jan-Pieter Cornet (@johnpc42)Photo by Jan-Pieter Cornet (@johnpc42)Photo by Jan-Pieter Cornet (@johnpc42)Photo by Jan-Pieter Cornet (@johnpc42)Photo by Jan-Pieter Cornet (@johnpc42)Photo by Jan-Pieter Cornet (@johnpc42)Photo by Jan-Pieter Cornet (@johnpc42)
Jan-Pieter Cornet retweeted
Qakbot 🦆🤖 takedown!!! Qakbot has been disrupted and dismantled by the FBI following a multinational effort. We will be assisting with the remediation - more info to follow... #malware #takedown #qakbot fbi.gov/news/stories/fbi-par…
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Jan-Pieter Cornet retweeted
“We'll kill spam in two years”❗Breaking News: Spam is still here❗ This Bill Gates gem is now almost 20 years old 🎂 👇theregister.com/2004/01/26/w… And how ironic, Spamhaus researchers now observe Microsoft to be the worst ISP, placing it top of Spamhaus’ CSS List. #SpamDefinitelyNotDead #TakeActionMicrosoft
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Jan-Pieter Cornet retweeted
It's not difficult for our ticketing team to spot when our researchers discover a new group of spammers to shut down 🎯 Look at the spike in tickets (bottom) vs. listings (top)! One new rule and a few thousand listings in less than one week equals A LOT of angry spammers 😡 ! 🤘#ResearchersRule #TicketDeskTales
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My last day working for XS4ALL... Did some fixes on the few servers that will remain running, wiped a lot of data, shut the door behind me, then had a nice drink with colleagues and friends. Strange feeling that I won't go back there, but excited to be looking for new things...
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Jan-Pieter Cornet retweeted
Laatste minuten van de XS4ALL shell-server. #xs4all #exit4all
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Jan-Pieter Cornet retweeted
En gevonden door collega @johnpc42 #xs4all #exit4all
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Jan-Pieter Cornet retweeted
The @xs4all team cracked the @ATComputing code at @mch2022 and got themselves a nice price. Crack the code and open a locker at the ATtent
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I was going to type “book”. The internet is awful! ⁦@drbecky_⁩
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Hey @crdflabs if you send us a phishing warning, and we investigate and it's a clean static site that hasn't been touched in weeks, and we ask for clarification, and receive no reply whatsoever... then we will ignore all other warnings you send, ok? #useless #wildgoosechase
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Just received another malware warning from @crdflabs this time for an IP that has been offline for almost 5 years. Plonk.
Bekijk mijn lijst en stem ook voor de NPO Radio 2 Top 2000! stem.nporadio2.nl/top2000-20…
It's not a coincidence that the clearview logo looks a lot like the OCP logo, another company that did great things for the police force... #LastWeekTonight
Jan-Pieter Cornet retweeted
After 27 years, today marks the last day of what has been quite the adventure. As a 22 year old, while in university, we founded XS4ALL, the first end-user ISP in The Netherlands. Thanks to everyone that joined us on this adventure. So long and thanks for all the fish.
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Why I like #macOS #catalina: the dynamic background picture is taken towards the south-east, which is roughly the direction i'm normally facing while working, so at least the sun is in the 'right' position on my screen.
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... now I just need to get over the fear of putting icons on the water :)
XS4ALL just enabled TLSv1.3 on pop.xs4all.nl and imap.xs4all.nl. We see about 28.5% of connections using the latest TLS version. 65% is still on TLSv1.2, and almost 6% at TLSv1.0 (and 0.5% at TLSv1.1)
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Jan-Pieter Cornet retweeted
Aandeelhouder met 900.000 aandelen KPN schaart zich achter @XS4ALLblijft: "Als ik zo'n submerk zou hebben met zo'n loyale klantgroep zou ik een moord doen om ze te behouden"
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Slides from session on ‘DANE for securing mail server connections’ at #OneConference with Patrick Koetter (sys4), Jan-Pieter Cornet (XS4ALL) and our own Gerben Klein Baltink: - internet.nl/article/ncsc-one… - internet.nl/article/ncsc-one… - internet.nl/article/ncsc-one… #DANE #DNSSEC #NLCyber
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