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Christoffer S.

@cstromblad.com
131 followers 0 following 210 posts

🇪🇺 Father, husband, Swedish and cyber. Oh man, all the things cyber but mostly threat Intelligence. Dabble with Python. In the cybersecurity field as a professional […] 🌉 bridged from ⁂ swecyb.com/@nopatience, follow @ap.brid.gy to interact

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Christoffer S. @cstromblad.com · 02/10/2026
This is a Toot about code generation, and if any LLM-use annoys the crap out of you, don't read further. So I'm a daily user of code generation tools and one thing that is painfully obvious is that no matter how much prompting, guardrails, rules, contracts, dynamically loaded constraints for […]
swecyb.com
Original post on swecyb.com
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Christoffer S. @cstromblad.com · 02/10/2026
And... we've got Friday morning over here in #Sweden. It will be a day of programming and development, most likely tearing some of the remaining hair from my head. What are you working on today? (Or will be working on?)
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Christoffer S. @cstromblad.com · 30/09/2026
This makes me curious: sec.cloudapps.cisco.com/security/ce… Advanced notification about vulnerabilities for October 7? What's that about, is that a common practice? #Cisco #Vulnerability
sec.cloudapps.cisco.com
Cisco Advance Notification for Publication of October 7, 2026, Security Advisories
On October 7, 2026, the Cisco Product Security Incident Response Team (PSIRT) will publish advisories to disclose security vulnerability information along with fixed software releases for the following Cisco products: Application Policy Infrastructure Controller (security hardening release) Finesse License On-Prem, formerly Cisco Smart Software Manager On-Prem (security hardening release) Meraki (security hardening release) NX-OS Software for MDS 9000, Nexus 3000, 7000, and 9000 Series Switches, Nexus 9000 in ACI mode, and UCS Fabric Interconnects (security hardening release) To remediate vulnerabilities to be disclosed on October 7, 2026, Cisco strongly recommends that customers upgrade to the fixed software indicated in the advisories. For more information about changes in Cisco PSIRT vulnerability disclosure, see Strengthening the Foundation: A Predictable, Customer-Focused Response to AI-Accelerated Vulnerability Discovery.
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Reposted by Christoffer S.
J. Nathan Matias 🦣 @natematias.social.coop.ap.brid.gy · 29/09/2026
Wow, LinkedIn's algorithm really doesn't want people to read @sarahgilbert's article about keeping the Internet human in the era of AI Out of the 10,200 impressions the feed gave my posts last week, it only gave 65 to Sarah's *important* article in @techpolicypress As Sarah writes, "If AI […]
social.coop
Original post on social.coop
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bontchev.infosec.exchange.ap.brid.gy @bontchev.infosec.exchange.ap.brid.gy · 28/09/2026
The new AI dictionary:
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Reposted by Christoffer S.
hrbrmstr 🇺🇦 🇬🇱 🇨🇦🇧🇪 @hrbrmstr.mastodon.social.ap.brid.gy · 25/09/2026
Seeing alot of performative commentary by AI detractors on sheer jankiness and the lack of quality of Meta's agent harness. Guess none of them have seen what every major "next generation" network security vendor's admin http server code looks like and what every XDR company's endpoint agent […]
mastodon.social
Original post on mastodon.social
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Christoffer S. @cstromblad.com · 24/09/2026
Morning fellow tooteronies. What's crackin'?
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Christoffer S. @cstromblad.com · 23/09/2026
@orlysec is back in action. Currently reviewing each item before publishing, but once things appear to be working smoothly it will autopublish like before. And since I've now given myself ample room and opportunity to customize the "streams" of output, let me know if there are any particular […]
swecyb.com
Original post on swecyb.com
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Reposted by Christoffer S.
hrbrmstr 🇺🇦 🇬🇱 🇨🇦🇧🇪 @hrbrmstr.mastodon.social.ap.brid.gy · 21/09/2026
CISA 💙 deception environments (a.k.a. honeypots 🍯)! www.cisa.gov/resources-tools/resour… cc: @HoneyLabs @tracebit
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Christoffer S. @cstromblad.com · 20/09/2026
Time to revive @orlysec soon I think. Have made some improvements to various components and I can now ... get the content (security advisories) from Fortinet PSIRT and others meaning I could push those types of content through Orlysec. But either way, would be fun to get Orlysec back in action.
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Christoffer S. @cstromblad.com · 17/09/2026
I slipped... I wanted to delete a directory did a wildcard <term-*> And was a bit too quick... deleted about 1 week worth of work. Panic. But then I remembered that... didn't I actually setup this borgmatic backup a while back, like a few months ago. Yes, I had... and for the first time ever […]
swecyb.com
Original post on swecyb.com
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Christoffer S. @cstromblad.com · 17/09/2026
Not all things in life are trivial och easy, but one thing that was easy and trivial was switching my ISP. Went from Tele2 to obenet which for scale is basically going from Google to a bunch of nerds running their own infrastructure but you know you'll get better service and support because […]
swecyb.com
Original post on swecyb.com
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Christoffer S. @cstromblad.com · 16/09/2026
Does anyone have experience in running NixOS on a Framework 13 laptop? #Framework #Laptop #NixOS
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Christoffer S. @cstromblad.com · 16/09/2026
Wednesday. Sometimes the weekend can't come fast enough. But when working as a solopreneur it shouldn't really matter, but it does. Weekends are still... Weekends. How's your day?
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Reposted by Christoffer S.
'(vidak) _(:3」∠)_ @dirtycommo.anticapitalist.party.ap.brid.gy · 16/09/2026
please boost. i am ready to start providing email addresses to the community. you may have 1GB mail box storage capacity free of charge. the system-wide code of conduct is at: solarpunk.au if you are interested in a non-free account, please click here […]
anticapitalist.party
Original post on anticapitalist.party
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Christoffer S. @cstromblad.com · 15/09/2026
Awwhhhh yiiiiis... the feeling of now having a zero-down time deploy when cutting new releases. Nothing magical really, but it's a damn good feeling when a new version can be deployed of a rather big application but at the same time experiencing zero downtime. Of course I'm not really counting […]
swecyb.com
Original post on swecyb.com
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Christoffer S. @cstromblad.com · 15/09/2026
On the topic of LLM-generated software there is one thing I've only grown more concerned and confident about - the need for systems design and architecture thinking. From what I've experienced, both anecdotally and first-hand, is that LLM-generated software systems eventually devolve, and when […]
swecyb.com
Original post on swecyb.com
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Christoffer S. @cstromblad.com · 15/09/2026
Fortinet is checking is my "connection to this site is secure." I would love to know what beyond the established TLS-handshake / connection could be checked for the "secure"-state? And ironically it doesn't advance either. So yeah... great UX, really great.
Fortinet "protection" checking that my connection to this site is secure...
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Christoffer S. @cstromblad.com · 14/09/2026
I still find it somewhat hilarious that companies spend time on producing articles, publishes them on a blog only to then make it hard to actually follow their content and discover new articles as they are published. Like... a) not having an RSS/Atom feed? b)... did I say no feed? And then […]
swecyb.com
Original post on swecyb.com
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Christoffer S. @cstromblad.com · 11/09/2026
I've noticed significant amount of requests towards the path /packs/*.js files on my Mastodon instance... What's that about? #MastoAdmin
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Christoffer S. @cstromblad.com · 11/09/2026
Fellow #MastoAdmin people. Have you come across this registration bot with account details like this: Reason: Automated protocol deliverability probe And account details like this: bp3de08dafada0d38a @bp3de08dafada0d38a
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Christoffer S. @cstromblad.com · 11/09/2026
@Viss Your talk rocked by the way ;-)
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Christoffer S. @cstromblad.com · 10/09/2026
The recent Microsoft Security Research article about cloud-based intrusions was surprisingly detailed and good. I liked the timeline as one quite neat thing showing just how quickly the events unfolded […]
swecyb.com
Original post on swecyb.com
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Hacker Memes @i0null.infosec.exchange.ap.brid.gy · 10/09/2026
#directoryTraversalMemes
Gru's Plan meme from Despicable Me.

Panel 1:  "state of the art firewall"
Panel 2: "nextgen features"
Panel 3:  ../
Panel 4: a dump of /etc/passwd
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Christoffer S. @cstromblad.com · 09/09/2026
The amount of times that Firefox freezes on my Fedora-installation is through the roof. It's doing it now almost every day. I can't help but feel as if the quality is going down? Or is this just me... experiencing things not actually true? :-) #Firefox #Mozilla
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Christoffer S. @cstromblad.com · 07/09/2026
If I wanted to learn Mandarin, which language app would you suggest I use? My idea is to learn the basics through the app, but then also as quick as possible move towards speaking with natives... but that's step two. Any one got experience to share? #Chinese #Language #Learning #Mandarin
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Christoffer S. @cstromblad.com · 07/09/2026
Finally managed to find the time to upgrade the Mastodon instance version to v4.7.1. While it really didn't take all that much time, sometimes... life will make even the smallest bit of extra commitment feel like an almost insurmountable task. But now we're done and we're back on track with […]
swecyb.com
Original post on swecyb.com
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bfaliszek @bfaliszek.mastodon.online.ap.brid.gy · 21/05/2026
WinRAR is more profitable than OpenAl
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Scary "Grampus" Jerry 👻 @jerry.infosec.exchange.ap.brid.gy · 06/09/2026
I’m seeing more than normal account takeovers. Please don’t click on telegram links and for the love of $deity, please use 2fa.
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Christoffer S. @cstromblad.com · 04/09/2026
Route taken: Claude Code > OpenCode > PI. Less really is more. Happy with transition and choice. Mostly running GLM 5.3/Flash and Kimi3 now. Would have really wished to be able to run more locally, but not there yet.
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Thomas Roccia :verified: @fr0gger.infosec.exchange.ap.brid.gy · 02/09/2026
🤓 I compiled some of the early AI Threat Intelligence reports and the progression is interesting! 2024 > AI was mainly used for assistance, influence operations, disinformation and early underground AI infrastructure. 2025 > We saw early malware using LLM […] [Original post on infosec.exchange]
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Christoffer S. @cstromblad.com · 01/09/2026
RE: newsie.social/@Tendar/1171957039631… Well now... this is an escalation that's been expected, but definitely not wanted. Where to now then I ask? What will become of this... attack? If this is real and all, confirmed by official sources... it would be an attack on a NATO country […]
swecyb.com
Original post on swecyb.com
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Christoffer S. @cstromblad.com · 01/09/2026
What if... perhaps a shot in the dark, misses the point etc. But you know the story of how 100+ companies have alleged that the number of automated highly sophisticated AI-attacks will mega-increase in the coming months due to model availability etc. Now if we disregard the fact that we've […]
swecyb.com
Original post on swecyb.com
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Christoffer S. @cstromblad.com · 31/08/2026
In Sweden it's election time which is hard to miss because everywhere you look there are these placards with meaningless five "sentence" captures of the promises they will inevitably break once elected. But what annoys me the most about Swedish politics is that rarely, if ever, do the […]
swecyb.com
Original post on swecyb.com
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Christoffer S. @cstromblad.com · 28/08/2026
I can't help but think the Microduck from Hugging Face is so cute :-) pollen-robotics.com/microduck Perhaps fun for the kids to play with... for about 10 minutes.
pollen-robotics.com
Pollen Robotics (Hugging Face) Microduck
Comments
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Christoffer S. @cstromblad.com · 27/08/2026
And... NAS has been restored, new drive installed, recovery completed. Now, time to order a few new drives to be ready for the next inevitable failure. #Selfhosting #NAS #Synology
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Jens Ohlig @johl.mastodon.xyz.ap.brid.gy · 26/08/2026
Critical remote code execution (RCE) vulnerability in Log4j2 like it’s 2021. github.com/hypnguyen1209/log4j2-rce
github.com
GitHub - hypnguyen1209/log4j2-rce: Pre-auth RCE via FilteredObjectInputStream MarshalledObject bypass in Apache Log4j 2
Pre-auth RCE via FilteredObjectInputStream MarshalledObject bypass in Apache Log4j 2 - hypnguyen1209/log4j2-rce
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Mastodon @mastodon.mastodon.social.ap.brid.gy · 18/08/2026
After publishing the results of Discovery Week, we can now give you a first sneak peak at Mastodon 5.0, our next big version. It will bring a new visual look to your screens, a refreshed and calmer layout, as well as a new composer […]
mastodon.social
Original post on mastodon.social
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Christoffer S. @cstromblad.com · 26/08/2026
I was worried that leaving Claude Code MAX behind would slow me down when switching to open weight models. But alas, I shouldn't have worried at all. Running GLM-5.2 has been great, and soon that will be 5.3. Combined with Kimi3... I honestly don't see why people insist on Claude Code. Well I […]
swecyb.com
Original post on swecyb.com
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Christoffer S. @cstromblad.com · 24/08/2026
Let me tell you, there's nothing more stressful than your NAS starting to beep and telling you there is a critical failure on your storage pool. 4/5 drives working... I should always have a spare available... lesson learned. New drive ordered, NAS offline, do not dare to keep it online […]
swecyb.com
Original post on swecyb.com
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Christoffer S. @cstromblad.com · 23/08/2026
Hooray, The Burnt Peanut is back on ARC Raiders haha... always a champ, always a joy to watch. Chaos, and ... chaos, but very entertaining. www.youtube.com/watch?v=TECIYHmiLDc #ARCRaiders #TheBurntPeanut
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Christoffer S. @cstromblad.com · 23/08/2026
I see people and companies using the word Infographics quite often but I was under the impression that the purpose of infographics was to show relativity of some quantity? Like: this is how likely it is to die from a plane crash and from getting hit by a drunk driver. So as to visually show a […]
swecyb.com
Original post on swecyb.com
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Christoffer S. @cstromblad.com · 22/08/2026
Let this be your friendly Fediverse reminder to back-the-hell-up your password/keystore and store it in a safe place. Especially if you #selfhost but also if using cloud services. Yes, I just had a scare with my VaultWarden / Bitwarden vault... made me realize how fugged I would be should my […]
swecyb.com
Original post on swecyb.com
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Christoffer S. @cstromblad.com · 21/08/2026
Meanwhile in #Sweden we've had a nutcase running amok in a school killing 1 and injuring 3 more in an attack with a fucking sword. What. The. Actual. Fuck. Is. Wrong. With. People. And it unfortunately, and sadly, is not the first time this has happened. I don't even...
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Christoffer S. @cstromblad.com · 20/08/2026
I wonder if LLMs will follow the same trajectory as Moore predicted for transistors. We are currently at the 60s/70s big computers, the ENIACs the Colossus. But quite fast we are approaching smaller yet still very capable models. DeepSeek Flash v4 with the same performance and capabilities that […]
swecyb.com
Original post on swecyb.com
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Christoffer S. @cstromblad.com · 19/08/2026
On the topic of software architecture, just saw that this had been streamed, viewing it now. Uncle Bob is a legend and I have all the books, so I was naturally quite excited about this interview / discussion between Matt and Bob :-) www.youtube.com/watch?v=zcLPGC-tvgk #Programming […]
swecyb.com
Original post on swecyb.com
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Christoffer S. @cstromblad.com · 19/08/2026
Great take and discussion about the economics of firing workers in favor of using AI to replace them. www.youtube.com/watch?v=O3gYyCB2n9o
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Christoffer S. @cstromblad.com · 18/08/2026
#Programming advice requested. What course, book, or web-article(s) are currently considered "the best" for learning about modern software architecture? In a world of AI-coding, I still find that a proper architecture is still necessary no matter how magical coding tools appear. So I'm asking […]
swecyb.com
Original post on swecyb.com
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Christoffer S. @cstromblad.com · 14/08/2026
I may have ... achived some sort of record. While playing crazy/adventure/mini golf I sprained my right middle finger. Yeah... while playing minigolf. So apparently the engineers of this course thought it appropriate to build this decline between two courses with a very slippery fake grass […]
swecyb.com
Original post on swecyb.com
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Christoffer S. @cstromblad.com · 07/08/2026
Now I got a breach notification from Framwork, that Metabase cloud apparently was breached, some business intelligence company. Perhaps related to Feedly? #Breach #Incident
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