{"id":31702,"date":"2025-10-06T10:49:49","date_gmt":"2025-10-06T03:49:49","guid":{"rendered":"https:\/\/sgu.ac.id\/?p=31702"},"modified":"2025-10-06T11:09:43","modified_gmt":"2025-10-06T04:09:43","slug":"wpa3-is-broken-your-next-gen-wifi-is-not-safe","status":"publish","type":"post","link":"https:\/\/sgu.ac.id\/id\/wpa3-is-broken-your-next-gen-wifi-is-not-safe\/","title":{"rendered":"WPA3 is Broken: Why Your “Next-Gen” Wi-Fi is Still Not Safe"},"content":{"rendered":"
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By Dr. Ir. Charles Lim, Msc., Bsc., CSAP, Security+, CySA+, ECDE, CND, CCSE, CTIA, CHFI, EDRP, ECSA, ECSP, ECIH, CEH, CEI<\/a><\/p>\n

Deputy Head of Master IT Program
\nHead of Cybersecurity Research Centre of Excellence
\nHead of Security Operations Center
\nSwiss German University<\/p>\n

_________________________________________________________________________<\/strong><\/p>\n

Is WPA3 really secure?<\/strong> When Wi-Fi Protected Access 3 (WPA3) was announced, it promised to fix the well-known flaws in WPA2. After attacks like KRACK<\/strong> shook the world in 2017 [2], WPA3 was marketed as the future of Wi-Fi security<\/em>, introducing new protections against brute-force password cracking, denial-of-service attacks, and hotspot cloning.<\/p>\n

But reality is different. Researchers have since proven that WPA3 vulnerabilities<\/strong> exist in both the protocol design and real-world implementations [1]. In short: WPA3 can still be hacked.<\/p>\n

If you’re wondering how safe your home or public Wi-Fi really is, this post breaks down:<\/p>\n

    \n
  1. The major WPA3 flaws (like Dragonblood<\/strong>)<\/li>\n
  2. How attackers can still hack WPA3 networks<\/li>\n
  3. What this means for your Wi-Fi security<\/strong> at home and on public hotspots<\/li>\n
  4. Practical Wi-Fi safety tips<\/strong> you can use today<\/li>\n<\/ol>\n

    But reality is different. Researchers have since proven that WPA3 vulnerabilities<\/strong> exist in both the protocol design and real-world implementations [1]. In short: WPA3 can still be hacked.<\/p>\n

    If you’re wondering how safe your home or public Wi-Fi really is, this post breaks down:<\/p>\n

      \n
    1. The major WPA3 flaws (like Dragonblood<\/strong>)<\/li>\n
    2. How attackers can still hack WPA3 networks<\/li>\n
    3. What this means for your Wi-Fi security<\/strong> at home and on public hotspots<\/li>\n
    4. Practical Wi-Fi safety tips<\/strong> you can use today<\/li>\n<\/ol>\n
      \n

      What Is WPA3 and Why Does It Matter?<\/strong><\/h2>\n

      WPA3 is the latest Wi-Fi security standard, designed to replace WPA2, which had been around since 2004. It introduced two big improvements:<\/p>\n

        \n
      1. Simultaneous Authentication of Equals (SAE)<\/strong> handshake (Dragonfly) → prevents offline password guessing.<\/li>\n
      2. Management Frame Protection (MFP)<\/strong> → prevents attackers from spoofing disconnect messages.<\/li>\n<\/ol>\n

        Sounds good, right? The problem is that both of these “fixes” still have weaknesses.<\/p>\n

        \n

        WPA3 Vulnerability #1: Cracks in the Dragonfly Handshake<\/strong><\/h2>\n

        The Dragonfly handshake<\/strong> (also called SAE) was supposed to protect home Wi-Fi networks from brute-force password attacks.<\/p>\n

        Dragonblood: The WPA3 Password Leak<\/strong><\/h3>\n

        In 2019, researchers revealed Dragonblood<\/strong>, a set of vulnerabilities that leak information during the handshake process [1]. By carefully measuring response times, attackers can recover enough hints about your password to run offline brute-force attacks<\/strong>—the exact attack WPA3 was designed to stop.<\/p>\n

        Even budget devices like Raspberry Pi were shown to be exploitable in real-world tests.<\/p>\n

        Denial-of-Service (DoS) Attacks<\/strong><\/h3>\n

        WPA3 routers are also vulnerable to simple handshake flooding attacks<\/strong>. By sending lots of fake handshake requests, attackers can crash routers like the D-Link DIR-X1860. Ironically, WPA3’s built-in “anti-clogging” defense created the bug that allows this attack [1].<\/p>\n

        ➡️ Bottom line: WPA3 still leaks passwords and can be knocked offline by DoS.<\/p>\n

        \n

        WPA3 Vulnerability #2: Management Frame Protection Doesn’t Protect<\/strong><\/h2>\n

        MFP was supposed to stop classic Wi-Fi hacking tricks, like deauthentication attacks<\/strong> (where an attacker forces your device to disconnect). Unfortunately, it has serious problems.<\/p>\n

        Weak Standard Design<\/strong><\/h3>\n

        The MFP standard is overly complex, full of contradictory rules [3]. For example:<\/p>\n

          \n
        1. Some rules require devices to accept unprotected disconnection frames before encryption is active.<\/li>\n
        2. Others tell devices to reject them.<\/li>\n<\/ol>\n

          Attackers can exploit this confusion to force Wi-Fi disconnections<\/strong> at will.<\/p>\n

          Beacon Attacks<\/strong><\/h3>\n

          Even worse, beacon frames<\/strong>—which tell your device the network’s name and settings—are not protected. Attackers can forge these to cause:<\/p>\n

            \n
          1. Forced disconnections<\/strong> (via fake channel switches)<\/li>\n
          2. Reduced speeds<\/strong> (by spoofing bad bandwidth settings)<\/li>\n
          3. Battery drain<\/strong> (by keeping devices awake) [6]<\/li>\n<\/ol>\n

            These attacks work across major operating systems, including Windows, macOS, Linux, iOS, and Android [3].<\/p>\n

            ➡️ Bottom line: WPA3 networks can still be disrupted with simple spoofing attacks.<\/p>\n

            \n

            WPA3 Vulnerability #3: Public Wi-Fi Hotspots Are Still Dangerous<\/strong><\/h2>\n

            To protect public Wi-Fi, WPA3 introduced SAE-PK<\/strong>, which uses public keys to stop attackers from cloning hotspots. On paper, this should fix the classic “evil twin” hotspot problem.<\/p>\n

            But in practice, it’s still weak.<\/p>\n

            Password Cracking with Rainbow Tables<\/strong><\/h3>\n

            SAE-PK generates passwords from network details, but researchers showed that attackers can use rainbow tables<\/strong> and cloud computing to break weak passwords in just two weeks<\/strong> [1].<\/p>\n

            Network-Layer Attacks Still Work<\/strong><\/h3>\n

            Even if hotspot cloning is blocked, attackers can still:<\/p>\n

              \n
            1. Use ARP poisoning<\/strong> to intercept traffic.<\/li>\n
            2. Exploit the shared group key<\/strong> to inject malicious packets (similar to WPA2’s “Hole 196” vulnerability [5]).<\/li>\n<\/ol>\n

              Tests found that Windows, Linux, iOS, and Android devices remain exposed [5].<\/p>\n

              ➡️ Bottom line: Public Wi-Fi is still unsafe, even with WPA3. Always use a VPN.<\/p>\n

              \n

              WPA3 Vulnerability #4: Exploit Tools Are Publicly Available<\/strong><\/h2>\n

              Researchers have built a WPA3 exploit framework<\/strong> [4] that automates many of these attacks, including:<\/p>\n

                \n
              1. Beacon spoofing<\/li>\n
              2. Channel-switch disconnections<\/li>\n
              3. Handshake flooding<\/li>\n
              4. Group key injection<\/li>\n<\/ol>\n

                This means hackers don’t need to invent these attacks from scratch—tools already exist.<\/p>\n

                \n

                WPA3 vs WPA2: Is WPA3 Still Worth It?<\/strong><\/h2>\n

                Yes, WPA3 is still better than WPA2<\/strong>, but it’s not the unbreakable security it was marketed to be. WPA2 is known to be broken (KRACK, Hole 196, dictionary attacks), while WPA3 raises the bar<\/strong> but introduces new flaws.<\/p>\n

                Think of WPA3 as stronger armor with some cracks<\/em>. It’s still progress—but not perfect.<\/p>\n

                \n

                Wi-Fi Security Tips (What You Can Do)<\/strong><\/h2>\n

                Until WPA3 matures, here are steps to keep your Wi-Fi safe:<\/p>\n

                  \n
                1. Update your router and devices.<\/strong> Many WPA3 vulnerabilities are fixed through patches.<\/li>\n
                2. Use strong passwords.<\/strong> WPA3 still relies on shared secrets—avoid short or simple ones.<\/li>\n
                3. Use a VPN on public Wi-Fi.<\/strong> This protects you from ARP poisoning and packet injection.<\/li>\n
                4. Disable auto-connect.<\/strong> Don’t let your phone auto-join public Wi-Fi networks.<\/li>\n
                5. Consider using mobile data<\/strong> instead of insecure hotspots for sensitive tasks.<\/li>\n<\/ol>\n
                  \n

                  Conclusion<\/strong><\/h2>\n

                  WPA3 was marketed as the “future of Wi-Fi security,” but research shows it’s still vulnerable to practical attacks like password cracking, denial-of-service, and public hotspot interception.<\/p>\n

                  The key lesson? No Wi-Fi standard is unhackable.<\/strong> Security requires not just better protocols but also continuous updates, audits, and safe practices from users.<\/p>\n

                  So, while WPA3 is a step forward, don’t be fooled into thinking it’s bulletproof. Stay updated, use strong passwords, and always treat public Wi-Fi with caution.<\/p>\n

                  \n

                  References<\/strong><\/h3>\n

                  [1] M. Vanhoef, “Attacking WPA3: New Vulnerabilities & Exploit Framework,” HITB Security Conference<\/em>, Singapore, 2022.<\/p>\n

                  [2] M. Vanhoef and F. Piessens, “Key Reinstallation Attacks: The Return of the Wi-Fi Devil,” KU Leuven Research Paper<\/em>, 2017.<\/p>\n

                  [3] D. Schepers, A. Ranganathan, and M. Vanhoef, “On the Robustness of Wi-Fi Deauthentication Countermeasures,” Proc. ACM WiSec<\/em>, 2022.<\/p>\n

                  [4] D. Schepers, M. Vanhoef, and A. Ranganathan, “DEMO: A Framework to Test and Fuzz Wi-Fi Devices,” Proc. ACM WiSec<\/em>, 2021.<\/p>\n

                  [5] M. Vanhoef and F. Piessens, “Predicting, Decrypting, and Abusing WPA2\/802.11 Group Keys,” USENIX Security Symposium<\/em>, 2016.<\/p>\n

                  [6] M. Vanhoef, P. Adhikari, and C. Pöpper, “Protecting Wi-Fi Beacons from Outsider Forgeries,” Proc. ACM WiSec<\/em>, 2020.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div> \t\t\t<\/div>\n\t\n\t\n<\/div>","protected":false},"excerpt":{"rendered":"

                  Think WPA3 is secure? New research shows it\u2019s still vulnerable to Wi-Fi hacking and hotspot attacks. Learn how to stay safe with smart security tips.<\/p>","protected":false},"author":1,"featured_media":31703,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[116],"tags":[],"class_list":["post-31702","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"yoast_head":"\nWPA3 is Broken: Why Your "Next-Gen" Wi-Fi is Still Not Safe – Swiss German University<\/title>\n<meta name=\"description\" content=\"Think WPA3 is secure? New research shows it\u2019s still vulnerable to Wi-Fi hacking and hotspot attacks. 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