I Made a Wifi Cracking Van
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Visit squarespace.com and use offer code LTT for 10% off Grab your very own set of LTT Keycaps with free US Shipping! Go to apos.io Did you know that you can get the internet wirelessly now? Well, you can, and while it might be amazing, it comes with a certain level of risk, especially if you are using a simple password and happen to run afoul a person with a van full of RTX 4090s. Just how fast can a nefarious van dweller with a bottomless budget gain access to your precious shared network drive? The answer might shock you. Big shout out to Comino for letting us borrow this absolute leaf blower of a server, it's been so much fun to play with. Discuss on the forum: linustechtips.com
Check out Comino Grando RM Workstations: lmg.gg Purchases made through some store links may provide some compensation to Linus Media Group. ► GET MERCH: lttstore.com ► GET EXCLUSIVE CONTENT ON FLOATPLANE: lmg.gg ► SPONSORS, AFFILIATES, AND PARTNERS: lmg.gg ► EQUIPMENT WE USE TO FILM LTT: lmg.gg ► OUR WAN PODCAST GEAR: lmg.gg FOLLOW US --------------------------------------------------- Twitter: twitter.com Facebook: @LinusTech Instagram: @linustech TikTok: @linustech Twitch: twitch.tv MUSIC CREDIT --------------------------------------------------- Intro: Laszlo - Supernova Video Link: youtube.com iTunes Download Link: itunes.apple.com Artist Link: soundcloud.com Outro: Approaching Nirvana - Sugar High Video Link: youtube.com Listen on Spotify: spoti.fi Artist Link: youtube.com Intro animation by MBarek Abdelwassaa @mbarek_abdel Monitor And Keyboard by vadimmihalkevich / CC BY 4.0 geni.us Mechanical RGB Keyboard by BigBrotherECE / CC BY 4.0 geni.us Mouse Gamer free Model By Oscar Creativo / CC BY 4.0 geni.us CHAPTERS --------------------------------------------------- 0:00 Intro 1:07 Phone numbers aren't good passwords 1:59 History of WiFi Security 2:45 WPA2 and how to break it 4:45 A look inside the Comino Grando RM 8:08 WPA3 and how to break it 10:16 Dictionary attacks 11:54 What you can do about it & conclusion
The video opens with a provocative demonstration of a so called Crackinator approach, showing how quickly a Wi-Fi password can be exposed using a van packed with high end hardware. The host explains that many networks still rely on weak passwords such as default credentials or easily guessable phone numbers, highlighting the security risk this creates for everyday users. The first major segment covers the history of wireless security, tracing the evolution from WEP to WPA2 and then to WPA3, with emphasis on how each transition aimed to close gaps that allowed attackers to capture or brute force credentials. Technical analogies are used to describe the handshake process, illustrating how a captured handshake can be reused to attempt offline password cracking. The video then transitions to a tour of the Comino Grando RM workstation, detailing its server grade power supplies, cooling solution, and the sheer scale of GPU resources that enable rapid password testing. Across these sections, the host also points out practical mitigations, such as using strong, random passwords, segregating networks, and deploying multiple WPA3 networks or VLANs to limit access. The concluding portion reframes the content as a practical guide to improve home network security, stressing that security is multi-layered beyond just passwords and that readers should consider network segmentation and careful device management to reduce risk.
Topics · technology · cybersecurity · hardware · diy
Questions answered
- What makes WPA3 harder to crack than WPA2, and why can some devices still threaten security?
- WPA3 introduces a Dragonfly handshake designed to resist offline password guessing by avoiding exposure of the password in the handshake. However, devices that are older or manufactured after WPA3 may fall back to WPA2 or have compatibility issues, creating entry points if not all devices fully support WPA3.
- What practical steps can a typical user take to secure a home network beyond using a long password?
- Use a separate guest network for visitors, consider VLANs to isolate IoT devices, enable WPA3 where possible, and run a second WPA2 network with tighter access controls for older devices. Regular firmware updates and minimizing exposed services also help.
- Is it feasible to prevent attackers from capturing handshakes without specialized hardware?
- Capturing handshakes is technically simple with off-the-shelf equipment, but protecting a network relies on strong, unique passwords, robust encryption like WPA3, regular device updates, and network segmentation, which together raise the bar for attackers.