Claude Security Just Scanned Your Code

If you’re a designer or an agency owner, you’re probably shipping more code than ever before, thanks to AI. You ask Claude to write a WordPress plugin or a custom form handler, and it works. But is it secure?

That question is the hidden risk of the AI era. Most of us aren’t security experts. We don’t have the time or budget for a full security audit on every project. So we ship the code and hope for the best.

Anthropic just gave us a better option. They launched Claude Security, a new tool that acts like a security researcher for your codebase. It scans your projects, finds vulnerabilities, and suggests the fix. For anyone building websites or apps for clients, this isn’t just a new tool. It’s a new category of insurance.

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What actually shipped

Claude Security is a new capability, now in public beta, that uses the Opus 4.7 model to analyze your code for security vulnerabilities. The key difference between this and a traditional linter or scanner is that it doesn’t just match patterns. It reasons about your code’s context and logic to find issues a simple scanner would miss.

You can point it at a specific directory in your project. It will read the code and generate a report of potential issues, from common problems like SQL injection risks to more subtle logic flaws. You can export these findings as a Markdown file or a CSV, which is perfect for creating client reports or internal tickets.

It also integrates with webhooks. This means you can pipe high-priority alerts directly to a Slack channel or automatically create a ticket in Jira or Monday.com. It’s designed to fit into the workflows that agencies already use.

Your Codebase           Claude Security Scan        The Output
─────────────────       ──────────────────────      ──────────────
┌───────────────┐       ┌────────────────────┐      ┌──────────────┐
│ WordPress     │       │ Opus 4.7 Reasoning │      │ Report (MD)  │
│ Plugin Source │  ───→ │ Engine Scans Code  │ ───→ │ CSV Export   │
└───────────────┘       └────────────────────┘      │ Slack Alert  │
                                                    └──────────────┘
        ↓                       ↓                            ↓
   Code you ship         Virtual security audit       Actionable fixes

Think of it less like a spellchecker and more like an experienced developer doing a code review. It understands the intent behind the code, which allows it to spot problems that aren’t just syntax errors.

This isn’t a linter. It’s an agent that thinks like a security researcher.

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Why this matters for agency work

For most design agencies and small dev shops, security is a huge blind spot. You build a great-looking site on WordPress, hand it off to the client, and move on. You don’t have a dedicated security person on staff. You’re not running penetration tests. You’re trusting that the code—whether written by a human or AI—is safe.

This is a massive liability. A single vulnerability in a form handler can lead to a data breach, which can destroy a client’s trust and your agency’s reputation. Claude Security gives you a practical, affordable way to close this gap. It’s a first line of defense that costs a tiny fraction of a manual security audit.

It lets you answer the client’s question, “Is it secure?” with something better than “I hope so.” You can show them a report. You can point to a process. It turns an unknown risk into a managed part of your workflow.

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Here’s how I’d actually use this

This tool is most valuable when it’s a non-negotiable part of your process. Here is the four-step workflow I’d build around it for every project that involves custom code.

1. Make it a pre-launch checklist item. Just like you test for broken links and mobile responsiveness, you run a Claude Security scan. No project goes live until it gets a clean report. This is a simple rule that prevents mistakes.
2. Focus the scan on high-risk areas. You don’t need to scan your entire CSS library. I’d target the code that handles user input, database queries, and API connections. For a WordPress site, that means the `functions.php` file and any custom plugins.
3. Use the Markdown export to create a client-facing report. I’d set up a Claude prompt that takes the raw Markdown output and turns it into a simple, one-page PDF. It would explain the issues found and the fixes applied in plain English. This document proves the value of the work you did.
4. Pipe critical alerts to a dedicated Slack channel. I’d configure the webhook to only fire for high-severity issues. This way, the team knows immediately if a major problem is discovered, but isn’t spammed with minor warnings.

This whole process can be automated as part of a deployment script. It adds maybe 15 minutes to a project launch, but eliminates a huge amount of risk. *If you can talk it, you can build it.*

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What this changes for designer-run agency work

This isn’t just an internal tool; it’s a new service you can offer. It changes how you can price, package, and position your work. Here are three immediate shifts this allows.

You can now sell a ‘Pre-Launch Security Audit’ as a line item. Before, this was impossible without hiring an expensive outside consultant. Now, you can add a $500 – $1,500 line item to your proposals for a security scan and report. It’s a clear, valuable service that clients understand and are willing to pay for.

It allows you to take on more complex projects with confidence. Want to build a membership site with user accounts? Or an e-commerce store that handles payments? These projects carry more security risk. With Claude Security in your toolkit, you can confidently build these more valuable sites without taking on an unacceptable amount of liability.

This is a powerful differentiator in a crowded market. Most web design agencies compete on design and price. Very few compete on security and reliability. By making security a visible part of your process, you position yourself as a more professional, trustworthy partner. You’re not just a designer; you’re an engineer building a solid foundation for their business.

This simple tool moves the conversation from “how it looks” to “how it works.” That’s a much more valuable conversation to have with a business owner.

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My $0.02 — How I’d roll this out for a design business

If you want to start using this today, here’s the three-day plan I’d follow. This is how you go from reading this article to offering a new, billable service.

Day 1 — Scan your own house first. Before you run this on client code, run it on your own agency website. Run it on an old project you shipped last year. Get a feel for the output. Learn what the reports look like. This lets you find any rough edges in a low-stakes environment.

Day 2 — Productize the process. Build the workflow. Create the client report template using Claude to summarize the technical output. Set up the Slack channel and configure the webhook. Write down the steps in a simple standard operating procedure (SOP) that anyone on your team can follow. This turns a tool into a repeatable system.

Day 3 — Update your proposal template and pitch it. Add “AI-Powered Security Scan” as an optional line item in your standard proposal. Then, pick your three best past clients and offer them a free scan of their current site. You’ll provide real value, and you’ll likely uncover issues that lead to paid work to fix them. This is the fastest way to get your first case study.

This is how I develop every new service at MK-Way. I use it myself, I build a system around it, and then I offer it to clients. It ensures the services I sell are grounded in real-world practice, not just theory.

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FAQ

Is this a replacement for a human security expert or a full penetration test?
No. It’s a powerful first line of defense and a great way to catch common vulnerabilities. For high-stakes applications like banking or healthcare, you still need a dedicated security team. But for most websites and business apps, this is a massive step up from doing nothing.

How much does it cost?
Claude Security is priced as part of the Claude API. You pay for the tokens used during the analysis. For most projects, this will be a few dollars, not hundreds. It’s incredibly affordable compared to a manual audit.

What programming languages does it support?
Anthropic hasn’t published an exhaustive list, but it’s built on Opus 4.7, which has broad knowledge of all major web languages: Python, JavaScript, PHP, Ruby, Go, etc. It works very well on typical web stacks like WordPress or Shopify themes.

Is my source code sent to Anthropic?
Yes, the code you select is sent to Anthropic’s servers for analysis. As per their privacy policy, data submitted through the API is not used to train their foundation models.

How is this different from a tool like GitHub Copilot’s security scanning?
Tools like Copilot’s scanner are often based on static analysis (SAST), which looks for known bad patterns. Claude Security uses the reasoning capabilities of a frontier model to understand the context of your code, allowing it to find more novel or complex issues.

Can it fix the vulnerabilities automatically?
It provides detailed explanations and often suggests the exact code changes needed to fix the issue. You still need to review and apply the patch yourself. It’s a co-pilot, not an auto-pilot.

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This post is part of the AI Pulse atomic series. If you commented “SECURE” on one of my videos — this is the breakdown. Sources: Help Net Security.

Last updated: 2026-06-01.