Mark Feeney (@JustNetGuy) header
Mark Feeney (@JustNetGuy) profile picture

Mark Feeney

@JustNetGuy

Cybersec guy, drone enthusiast, amateur weather watcher CWOP DW6905 / Wunderground KMABRADF5 / SKYWARN member - BBQ guy.

 Bradford, MA
Joined June 2011
  • Tweets1.6K
  • Following361
  • Followers43
131Media
Photo by Mark Feeney (@JustNetGuy)Photo by Mark Feeney (@JustNetGuy)Photo by Mark Feeney (@JustNetGuy)Photo by Mark Feeney (@JustNetGuy)Photo by Mark Feeney (@JustNetGuy)Photo by Mark Feeney (@JustNetGuy)Photo by Mark Feeney (@JustNetGuy)Photo by Mark Feeney (@JustNetGuy)Photo by Mark Feeney (@JustNetGuy)
Mark Feeney retweeted
CYBERWARCON (@CYBERWARCON) profile picture
CYBERWARCON@CYBERWARCONOct 15
🚨 The CYBERWARCON 2026 lineup is here! Top researchers on destructive and disruptive cyber threats, plus keynote Rob Joyce. Nov 20 in Arlington, VA, or join virtually. Huge thanks to our review board for picking a great lineup! cyberwarcon.com #CYBERWARCON
Image from CYBERWARCON (@CYBERWARCON)
1
22
4
63
6,395
Mark Feeney retweeted
CYBERWARCON (@CYBERWARCON) profile picture
CYBERWARCON@CYBERWARCONOct 13
Want an inside look at CYBERWARCON? Apply to volunteer to get a backstage look at the conference, meet new people, and help make CYBERWARCON a success! Applications close October 23rd! Learn more & apply here: docs.google.com/forms/d/e/1F…
Image from CYBERWARCON (@CYBERWARCON)
1
4
4
786
Mark Feeney retweeted
Helena (@HelenaGoransson) profile picture
Helena@HelenaGoranssonSep 6
Norway's Prime Minister rips apart Trump's stupid letter. Love this! Every leader that receives a letter like this from DJT should do the same. Thanks for your attention to this matter! BRILLIANT!
Image from Helena (@HelenaGoransson)
Readers added context they thought people might want to know
While the text is from a real Jan 2026 SMS exchange between Donald Trump and Norway's PM, the image showing a physical letter with a D+ grade is AI-generated and not an actual document sent by Trump or graded/ripped apart by the Norwegian PM. reuters.com/world/europe/e… commons.wikimedia.org/wiki/File:Dear…
7,760
658
37,893
3,745,609
Mark Feeney retweeted
sudox (@kmcnam1) profile picture
sudox
@kmcnam1Aug 21
Image from sudox (@kmcnam1)
45
52
9
657
14,231
Mark Feeney retweeted
mRr3b00t (@UK_Daniel_Card) profile picture
mRr3b00t
@UK_Daniel_CardJul 1
Bahahahhahahaha
Akhilesh Mishra (@livingdevops) profile pictureAkhilesh Mishra
@livingdevopsJun 30
Vibe coders everyday struggle in 15 seconds.
Readers added context they thought people might want to know
The original creator of the video is Nathan Doan, from Nathan Doan Comedy on YouTube, and the present watermark is not affiliated with him. The video is stolen and will result in losses for the original creator. youtu.be/83cDUAJnyR4
3
4
32
4,271
Mark Feeney retweeted
LaurieWired (@lauriewired) profile picture
LaurieWired
@lauriewiredApr 8
Replying to @JeffDean
Thanks, that means a lot coming from you! I think you may have linked to the wrong video, here is the correct link :) youtube.com/watch?v=KKbgulTp…
Your RAM Has a 60 Year Old Design Flaw. I Bypassed It.

Your RAM Has a 60 Year Old Design Flaw. I Bypassed It.

Modern DRAM is based on a brilliant design from IBM.But, we're st...

youtube.com
11
7
386
19,299
Mark Feeney retweeted
DJI (@DJIGlobal) profile picture
DJI
@DJIGlobalMar 27
Giveaway time! Here's your chance to win the DJI Avata360 (DJI RC2) — DJI's first panoramic drone, redefining aerial creativity with flagship-level 8K HDR imaging. How to enter: 1. Follow @DJIGlobal 2. Like and share this post 3. Bonus Chance: Comment below — what's the one place you'd love to fly through and capture in full 360°? · Time period: 2026/3/27 - 2026/4/27. This giveaway is not affiliated with or endorsed by X. One winner will be selected at random through a third‑party platform. Good luck! Video created by: aleixalbet
2,736
2,462
161
3,633
258,101
Mark Feeney retweeted
Aaron Rupar (@atrupar) profile picture
Aaron Rupar
@atruparMar 24
Pete Hegseth: "We negotiate with bombs"
1,307
579
735
1,838
2,687,099
Image from Tori atheist (@ToriatheistTori)
823
8,211
196
81,711
1,400,666
Mark Feeney retweeted
Noah (@NoahKingJr) profile picture
Noah
@NoahKingJrFeb 28
Trump: Hey Siri, tell me how many miles I ran today. Siri: ok, sending missiles to Iran today.
Image from Noah (@NoahKingJr)
414
5,750
427
84,671
2,740,113
Mark Feeney retweeted
Sean Metcalf (@PyroTek3) profile picture
Sean Metcalf
@PyroTek3Feb 25
It's critical to protect VMware when you have virtual Domain Controllers
Will (@BushidoToken) profile pictureWill@BushidoTokenFeb 25
ICYMI: This is the TTP that hit the UK retailers Scattered Spider mounts a virtualized domain controller (DC)’s VMDK as a drive to a new or decommissioned VM. This effectively allows the adversary to copy the AD database ntds.dit from an unmanaged host. go.crowdstrike.com/rs/281-OB…
Image from Will (@BushidoToken)
3
31
1
177
24,987
Mark Feeney retweeted
Troy Hunt (@troyhunt) profile picture
Troy Hunt
@troyhuntFeb 25
I've had a few queries on this one (which isn't unusual for a large incident), mostly to the effect of "but I've never bought tyres in Canada". So, firstly, this isn't a tyre retailer, there are a heap of other products they sell: canadiantire.ca/en.html
Have I Been Pwned (@haveibeenpwned) profile pictureHave I Been Pwned
@haveibeenpwnedFeb 25
New breach: Canadian Tire had 38M unique email addresses breached in October. Data also included name, phone, physical address, PBKDF2 password and partial credit card data. 86% were already in @haveibeenpwned. Read more: haveibeenpwned.com/Breach/Ca…
Have I Been Pwned: Canadian Tire Data Breach

Have I Been Pwned: Canadian Tire Data Breach

In October 2025, retailer Canadian Tire was the victim of a data breach that exposed almost 42M records. The data contained 38M unique email addresses along with names, phone numbers and physical...

haveibeenpwned.com
3
1
1
23
12,919
Replying to @ProjectLincoln
@ProjectLincoln
Image from mike vrabel fan (@MikeTheGod25)
3
10
68
3,301
Image from Governor Newsom Press Office (@GovPressOffice)
Hannah Rabinowitz (@HBRabinowitz) profile pictureHannah Rabinowitz
@HBRabinowitzFeb 19
New banner went up at DOJ headquarters this afternoon
Image from Hannah Rabinowitz (@HBRabinowitz)
152
1,203
18
9,948
156,562
Insane….they’re hanging a giant Trump banner on the DOJ building….full blown North Korea vibes
Image from Wu Tang is for the Children (@WUTangKids)
1,176
3,872
595
17,645
2,203,577
🚨NEW: Pete Hegseth is cutting Senator Mark Kelly’s military pension and demoting his rank as punishment for telling service-members to not follow illegal orders in a recent video. RETWEET if you stand with @CaptMarkKelly against Hegseth!
Image from Protect Kamala Harris ✊ (@DisavowTrump20)
2,122
17,405
735
37,367
795,770
Mark Feeney retweeted
Dave Troy (@davetroy) profile picture
Dave Troy
@davetroyJan 3
In 2019, Fiona Hill testified that the Russian government was “signaling very strongly that they wanted to somehow make some very strange swap agreement between Venezuela and Ukraine.” (Search: Venezuela) i.e. we get Venezuela, they get Ukraine. s3.documentcloud.org/documen…
1
3,509
409
7,261
1,716,268
Holy Cow indeed
CALL TO ACTIVISM (@CalltoActivism) profile pictureCALL TO ACTIVISM
@CalltoActivism31 Dec 2025
🚨HOLY COW: In footage Republicans don’t want you to see, Jack Smith confirms Donald Trump was the CAUSE of January 6. They released it on New Year’s Eve to bury it. Let’s get it everywhere.
3
18
1
55
4,373
We’d agree with you.
Image from Governor Newsom Press Office (@GovPressOffice)
Stephen Miller (@StephenM) profile pictureStephen Miller
@StephenM31 Dec 2025
What if I told you our national debt is the tab for the mass looting of the American economy and the mass theft of the American dream?
110
857
15
5,284
125,721
Here's my Christmas forecast. You can find these on @tiktok_us #growingwisdom1
1
8
78
5,500
Load more