Top 3 Myths About Securing AI Applications

Despite growing adoption, many AI applications are built on false assumptions about model safety, prompt injection, and system behavior. Below this post unpacks the top myths we encounter in the field andwhy real-world threat pressure demands a different approach.

โ€œ๐—ง๐—ต๐—ฒ ๐—บ๐—ผ๐—ฑ๐—ฒ๐—น ๐—ถ๐˜€ ๐˜€๐—ฒ๐—ฐ๐˜‚๐—ฟ๐—ฒ, ๐˜€๐—ผ ๐˜๐—ต๐—ฒ ๐—ฎ๐—ฝ๐—ฝ ๐—ถ๐˜€ ๐˜€๐—ฒ๐—ฐ๐˜‚๐—ฟ๐—ฒ.โ€

Not even close.

Even a perfectly fine-tuned LLM can be misused in insecure workflows; prompt injection, tool overreach, vector poisoning, and downstream abuse donโ€™t care how safe your base model is. In some cases the larger the model the more easily it can be coaxed into performing undesired behaviour.

โ€œ๐—ฃ๐—ฟ๐—ผ๐—บ๐—ฝ๐˜ ๐—ถ๐—ป๐—ท๐—ฒ๐—ฐ๐˜๐—ถ๐—ผ๐—ป ๐—ถ๐˜€ ๐˜€๐—ผ๐—น๐˜ƒ๐—ฒ๐—ฑ.โ€

Itโ€™s not.

Regex filters and system prompts arenโ€™t silver bullets.

Attackers chain context, leverage encodings, embed triggers, poison memory and bypass naive controls in ways many teams havenโ€™t even threat modelled yet. A recent paper from only a few weeks ago found multiple bypass techniques which worked across all tested guardrails. (โ€œBypassing Prompt Injection and Jailbreak Detection in LLM Guardrailsโ€ - https://lnkd.in/g-prgNCM) - One of the most successful uses using emoji variation selectors (aka emoji smuggling) ๐Ÿ˜ฒ.

โ€œ๐—œ๐˜โ€™๐˜€ ๐—ท๐˜‚๐˜€๐˜ ๐—ฎ๐—ป๐—ผ๐˜๐—ต๐—ฒ๐—ฟ ๐—บ๐—ถ๐—ฐ๐—ฟ๐—ผ๐˜€๐—ฒ๐—ฟ๐˜ƒ๐—ถ๐—ฐ๐—ฒ.โ€

If only.

Traditional authN/Z patterns and input/output validation break down when your app includes a non-deterministic reasoning engine that can interpret context, rephrase inputs, and initiate tool use. AI apps just donโ€™t behave like REST APIs under pressure and can often surprise.

GenAI introduces a new category of dynamic non-deterministic cyber risk, requiring full-stack, continuous, AI-specific security testing.

At ๐—”๐—ฝ๐—ฝ๐˜€๐˜‚๐—ฟ๐—ฒ๐—ป๐˜ ๐—–๐˜†๐—ฏ๐—ฒ๐—ฟ ๐—ฆ๐—ฒ๐—ฐ๐˜‚๐—ฟ๐—ถ๐˜๐˜†, we're working with teams to address these myths to help ๐—ฏ๐˜‚๐—ถ๐—น๐—ฑ ๐—ฟ๐—ฒ๐˜€๐—ถ๐—น๐—ถ๐—ฒ๐—ป๐˜ ๐—ฎ๐—ฝ๐—ฝ๐—น๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป๐˜€ ๐—ฟ๐—ผ๐—ผ๐˜๐—ฒ๐—ฑ ๐—ถ๐—ป ๐—ฟ๐—ฒ๐—ฎ๐—น-๐˜„๐—ผ๐—ฟ๐—น๐—ฑ ๐˜๐—ต๐—ฟ๐—ฒ๐—ฎ๐˜ ๐—ฝ๐—ฟ๐—ฒ๐˜€๐˜€๐˜‚๐—ฟ๐—ฒ, not hopeful or incomplete assumptions.

Has your organization started integrating adversarial thinking into AI application deployment yet?

โ€

Jamie Baxter

Principal at Appsurent

ยฉ 2025 Appsurent Cyber Security. All rights reserved.