The OWASP Top 10 for LLMs: A Light-hearted Look at Serious Security

Darlene A.
3 min readAug 4, 2023

Welcome, dear readers, to the wild, wacky, and somewhat worrisome world of Large Language Models (LLMs)! Today, we’re diving into the OWASP Top 10 vulnerabilities for LLMs. But don’t worry, we’re keeping things light and digestible. So, buckle up and let’s dive in!

## LLM01: Prompt Injection

Imagine you’re at a party, and someone keeps feeding you lines to say. “Tell them about the time you fought a bear!” they whisper. You’ve never fought a bear, but the crowd is waiting, so you spin a tale. That’s prompt injection, folks! Crafty inputs leading to unintended bear-fighting tales. The solution? Be like a discerning party-goer: don’t just repeat what you’re told!

## LLM02: Insecure Output Handling

Ever played the game ‘Telephone’? You whisper a phrase to the person next to you, they pass it on, and by the end, “I like cats” becomes “Eyelash bats.” That’s insecure output handling in a nutshell. The LLM’s output gets twisted and turned, potentially causing all sorts of chaos. The fix? Double-check that message before you pass it on!

## LLM03: Training Data Poisoning

Imagine training for a marathon by only eating donuts. Sounds fun, right? But come race day, you’re not going to be in top form. That’s what happens when LLMs are fed with tampered or biased data. They end up running their race with a belly full of virtual donuts. The solution? A balanced diet of good, clean data!

## LLM04: Model Denial of Service

Picture this: you’re a barista, and a customer orders a latte with 37 specifications. By the time you’re done, you’ve got a line out the door and a serious headache. That’s a model denial of service attack, where resource-heavy operations bog down the system. The remedy? Limit those latte specifications!

## LLM05: Supply Chain Vulnerabilities

Imagine you’re baking a cake, but your eggs are bad, your flour is full of weevils, and your sugar is actually salt. That’s a supply chain vulnerability. If any ingredient in the LLM lifecycle is compromised, the whole cake — er, application — could be ruined. The fix? Check those ingredients!

## LLM06: Sensitive Information Disclosure

Ever had a friend who can’t keep a secret? “Guess what, everyone! Bob loves disco!” That’s your LLM inadvertently spilling the beans. To avoid unauthorized data disco parties, we need to teach our LLMs the art of discretion.

## LLM07: Insecure Plugin Design

Think of a plugin like a new roommate. If they leave the front door wide open, you’re going to have problems. Insecure plugin design can lead to all sorts of unwanted guests. The solution? Choose your roommates wisely, and make sure they know how to lock the door!

## LLM08: Excessive Agency

Ever given a toddler a marker, only to return and find your walls covered in ‘art’? That’s excessive agency. If an LLM has too much freedom, it might decide to redecorate your system in ways you didn’t intend. The fix? Keep those markers out of reach!

## LLM09: Overreliance

Relying too much on your LLM is like asking your dog to do your taxes. Sure, he’s smart (for a dog), but you’re probably going to end up in trouble with the IRS. To avoid a metaphorical audit, make sure you’re not asking your LLM to do more than it’s capable of.

## LLM10: Model Theft

Finally, we have model theft, the equivalent of someone stealing your secret grandma’s cookie recipe. Not only do you lose out, but you might start seeing suspiciously familiar cookies at every bake sale. To keep your recipes safe, guard those LLM models like they’re grandma’s secret stash!

And there you have it, folks! The OWASP Top 10 for LLMs, served up with a side of humor. Remember, while these issues are serious, a little laughter goes a long way in making cybersecurity more approachable. Stay safe (and silly) out there!

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Darlene A.

Certified Trouble maker, Cybersecurity oficionado, Business Owner, Wealth Coach, Alchemist