𝗕𝗮𝗱 𝗕𝘂𝗴 M𝗼𝗻𝗱𝗮𝘆: 💰 The DAO Hack (2016): A "re-entrancy" bug in a smart contract allowed an attacker to drain $50 million in Ethereum. The bug was so bad, the entire Ethereum blockchain had to be "hard forked" to reverse the theft. #badbugmonday #crypto #ethereum #hack ⛓️💸 https://www.rfr.bz/bb4b8e7

𝗕𝗮𝗱 𝗕𝘂𝗴 𝗠𝗼𝗻𝗱𝗮𝘆: 🎶 Gangnam Style (2014): Psy's hit song "broke" YouTube's view counter. The counter used a 32-bit integer, maxing out at 2,147,483,647 views. They had to upgrade to a 64-bit integer. Too popular to count. #badbugmonday #youtube #psy #overflow 📈💥 https://www.rfr.bz/b4f704a

What is Functional Testing? | IBM Functional testing is a software testing approach that verifies whether an application’s features work as expected based on the specified requirements.

𝗧𝗲𝘀𝘁𝗶𝗻𝗴𝟭𝟬𝟭: ⚙️ What is Functional Testing? A fancy term for checking if the features actually function. Does the "Save" button save? Does the "Login" button log you in? You'd be surprised how often the answer is no. #testing101 #FunctionalTesting

https://www.rfr.bz/b4abf48

Special Purpose Testing Agents - An Agent for Every Occasion Writing negative test cases for forms is the definition of soul-crushing busywork. You write the "Happy Path," but do you really want to write 50 other tests...

Stop writing negative test cases for forms. It’s 2026. 📉

Our new Validator agent takes your "Happy Path" script and automatically attempts the invalid inputs for you: ❌ Past dates in future fields ❌ Negative numbers ❌ Random strings

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#AutomateTheBoringStu

OWASP Web Security Testing Guide | OWASP Foundation The Web Security Testing Guide (WSTG) Project produces the premier cybersecurity testing resource for web application developers and security professionals.

𝗧𝗲𝘀𝘁𝗶𝗻𝗴𝟭𝟬𝟭: 🔒 What is Security Testing? The fine art of thinking like a bad guy. You're not just checking if it works; you're checking if you can get free stuff by typing ' OR 1=1; -- into the password field. #testing101 #Security https://www.rfr.bz/b379609

MIM-104 Patriot The MIM-104 Patriot is a mobile interceptor missile surface-to-air missile (SAM) system, the primary such system used by the United States Army and several allied states. It is manufactured by ...

𝗕𝗮𝗱 𝗕𝘂𝗴 𝗠𝗼𝗻𝗱𝗮𝘆: 💣 US Patriot Missile (1991): A software bug caused the system's internal clock to drift by 1/3 of a second over 100 hours. This tiny error made it miss an incoming Scud missile, resulting in 28 deaths. Timing is everything. #badbugmonday #military 🕒💥 https://www.rfr.bz/b7d8473

What is Performance Testing? | IBM Performance testing judges system performance or application performance with loads of various sizes.

𝗧𝗲𝘀𝘁𝗶𝗻𝗴𝟭𝟬𝟭: ⏱️ What is Performance Testing? Seeing how your app behaves when it's under pressure. Is it fast, or does it take 10 seconds to load a button? Users will judge you. Mercilessly. #testing101 #PerformanceTesting https://www.rfr.bz/b0231bb

iPhone FaceTime bug lets other people eavesdrop on you | CNN Business A newly discovered bug in Apple’s FaceTime software lets Apple users listen in on the people they are calling, and even see through their front-facing camera, without them picking-up the ...

𝗕𝗮𝗱 𝗕𝘂𝗴 𝗠𝗼𝗻𝗱𝗮𝘆: 👂 Apple FaceTime (2019): A bug let you listen in on someone's iPhone before they even answered the call. You just had to add yourself to the call. The ultimate eavesdropping exploit. #badbugmonday #apple #privacy #facetime 📱🤫
https://www.rfr.bz/b52fee1

What is Grey Box Testing? Techniques, Example Gray Box Testing is a technique to test the software product or application with partial knowledge of the internal workings of an application.

𝗧𝗲𝘀𝘁𝗶𝗻𝗴𝟭𝟬𝟭: ◻️ What is Grey Box Testing? You're not supposed to look at the code... but you took a little peek. Just enough to know where the bodies (and databases) are buried so you can write smarter tests. #testing101 #GreyBoxTesting https://www.rfr.bz/bd1c72d

Mariner 1 Destroyed | Time and Navigation Unbeknownst to its operators, the launch computer that controlled the Atlas rocket carrying Mariner 1 contained a tiny programming error. A single character had been left out of the guidance ...

𝗕𝗮𝗱 𝗕𝘂𝗴 𝗠𝗼𝗻𝗱𝗮𝘆: 🚀 Mariner 1 (1962): NASA's first interplanetary probe was destroyed 5 mins after launch. The cause? A single missing overbar in the guidance code - R instead of R̅. The most expensive typo in history. #badbugmonday #nasa 🛰️✏️ https://www.rfr.bz/bb37477

What is System Testing? | IBM System testing is the performance-based, end-to-end software testing of an entire system.

𝗧𝗲𝘀𝘁𝗶𝗻𝗴𝟭𝟬𝟭: 📦 What is System Testing? Testing the entire application, all wired together. This is where you find all the "fun" bugs that only appear when everything is running at once. #testing101 #SystemTesting https://www.rfr.bz/b9b3395

“Do you do regression testing?”

Not only do we do regression testing, but we do VISUAL REGRESSION testing. ExploreChimp notices when things change, even just planned text updates like you can see here.

TestChimp will ensure that the only changes on your site are the ones you intend.

𝗧𝗲𝘀𝘁𝗶𝗻𝗴𝟭𝟬𝟭: 🧩 What is Integration Testing? That moment when you check if your "unit" of code actually plays nice with the other units.

Spoiler: it usually doesn't at first. #testing101 #IntegrationTesting

https://www.rfr.bz/b02243c

Ariane flight V88 - Wikipedia

𝗕𝗮𝗱 𝗕𝘂𝗴 𝗠𝗼𝗻𝗱𝗮𝘆: 🚀 Ariane 5 Flight 501 (1996): A $370 million rocket self-destructed 40 seconds after launch. The cause? A 64-bit number was converted to a 16-bit number, causing an overflow. An expensive rounding error. #badbugmonday #aerospace #ariane5 💥💻 https://www.rfr.bz/b446830

𝗧𝗲𝘀𝘁𝗶𝗻𝗴𝟭𝟬𝟭: 🧱 What is a Unit Test? A dev-written test to prove a tiny piece of code (a "unit") does what they think it does. It's the first line of defense against their own mistakes. #testing101 #UnitTesting #TDD https://www.rfr.bz/bc0c8c4

Heartbleed - Wikipedia

𝗕𝗮𝗱 𝗕𝘂𝗴 𝗠𝗼𝗻𝗱𝗮𝘆: ❤️ Heartbleed (2014): A tiny bug in OpenSSL, a core internet security library, exposed sensitive data (like passwords & private keys) across millions of websites. Like finding a key to the internet's back door. #badbugmonday #security #databreach 🔓🖥️
https://www.rfr.bz/b4c4a2a

𝗕𝗮𝗱𝗕𝘂𝗴𝗠𝗼𝗻𝗱𝗮𝘆: 📞 AT&T Network Crash (1990): A single line of faulty code in a software update for network switches caused a 9-hour cascade failure, blocking 75 million calls. One break statement broke everything. #badbugmonday #att #outage ☎️🚫 https://www.rfr.bz/bc80945

Therac-25 - Wikipedia

𝗕𝗮𝗱 𝗕𝘂𝗴 𝗠𝗼𝗻𝗱𝗮𝘆: 🏥 Therac-25 (1985-1987): A radiation therapy machine delivered massive overdoses due to a "race condition" bug. A software flaw that tragically cost lives. #badbugmonday #healthcare 🩺💔

https://www.rfr.bz/bb6bf0d

Knight Capital's Automation Failure: Lost $440M in 45 mins - Swarnendu De How one forgotten server deployment cost Knight Capital $440M in 45 minutes - the ultimate automation disaster that changed Wall Street forever.

𝗕𝗮𝗱 𝗕𝘂𝗴 𝗠𝗼𝗻𝗱𝗮𝘆: 💸 Knight Capital Group (2012): A faulty software update unleashed a trading algorithm that 𝗹𝗼𝘀𝘁 $𝟰𝟰𝟬 𝗺𝗶𝗹𝗹𝗶𝗼𝗻 𝗶𝗻 𝟰𝟱 𝗺𝗶𝗻𝘂𝘁𝗲𝘀. When new code revives dead code and bankrupts a company. #badbugmonday #finance #stockmarket 📉💰 https://www.rfr.bz/bef63df

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The 𝗧𝗲𝘀𝘁𝗖𝗵𝗶𝗺𝗽 𝗩𝗦 𝗖𝗼𝗱𝗲 𝗘𝘅𝘁𝗲𝗻𝘀𝗶𝗼𝗻 is now available in the Cursor Extension Marketplace and ready for integration into your workflow.

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Toyota to restart Japan production after cyberattack on supplier Toyota Motor Corp will restart domestic production from Wednesday after a cyberattack on a supplier ground the automaking giant's factories to a one-day halt, sparking concerns about vulnerability in Japan Inc's supply chain.

#badbugmonday
💻Toyota's production halt (2022): A software glitch in a supplier's system halted production at all Toyota plants in Japan. When one bug stops an entire factory. 🏭

www.reuters.com/markets/stoc...

#toyota #supplychain

𝗧𝗲𝘀𝘁𝗶𝗻𝗴 𝟭𝟬𝟭: 🔄 Design for maintainability. Use clear naming conventions & modular code. Your future self (and team) will thank you! #CleanCode #AutomationBestPractices #testing101

𝗧𝗲𝘀𝘁𝗶𝗻𝗴 𝟭𝟬𝟭: Identify key stakeholders early. 🤝 Who needs to approve, review, or be informed about your test plan? Get their buy-in upfront.

#StakeholderManagement #Teamwork #AgileQA #QATesting101

Are you doing enough testing?

Worried about "overzealous" auto-healing? ExploreChimp puts you in control. It finds bugs, suggests fixes, but YOU decide the next steps. 💪 #Control #AIpartnership #SmartQA #TestChimp

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𝗕𝗮𝗱𝗕𝘂𝗴𝗠𝗼𝗻𝗱𝗮𝘆

📞 T-Mobile Data Breach (2021): Hackers stole personal data of millions of customers through a network vulnerability. When your phone company can't keep a secret. #badbugmonday #tmobile #databreach 🔒 en.wikipedia.org/wiki/T-Mobil...

Congestion charge and Ulez: Black-cab drivers wrongly penalised Drivers have been targeted for entering the congestion charge and Ulez zones despite being exempt.

Bad Bug Monday
🚦 London Congestion Charge System (2024): Software bugs caused Black Cabs to be wrongly fined.

When city planning meets software chaos.

#badbugmonday #london #congestioncharge 🚗💸 www.bbc.com/news/article...

𝗕𝗮𝗱 𝗕𝘂𝗴 𝗠𝗼𝗻𝗱𝗮𝘆:💸 Binance Smart Chain Hack (2022): A cross-chain bridge vulnerability led to $100 million being stolen. When crypto bridges have gaping holes. #badbugmonday #binance #cryptohack 🌉💰 www.binance.com/en/square/po...

Regression Testing - Software Engineering - GeeksforGeeks Your All-in-One Learning Portal: GeeksforGeeks is a comprehensive educational platform that empowers learners across domains-spanning computer science and programming, school education, upskilling, co...

Testing101: 🔄 What is Regression Testing? Re-running tests to ensure new code changes haven't broken existing functionality. Essential for stability↩️ www.geeksforgeeks.org/software-eng...

#RegressionTesting #Stability #Testing #QA

📦 FedEx package data exposure (2018): An unsecured Amazon S3 server exposed sensitive customer data. When your delivery service leaves your data on the curb. #badbugmonday #fedex #dataprivacy 📦🔓 mashable.com/article/fede...