Conseal, a New On-Device Privacy App, Masks Sensitive Client Data Before It Reaches AI Tools Like ChatGPT and Claude

7 out of 10 lawyers who work at law firms work alone or at firms with 10 or fewer lawyers. Most cannot easily afford or access the special AI plans that large law firms use to keep client information private.

MIAMI, FL | October 23, 2026. Sprintfour Technologies announced today that Conseal is now available to the public. Conseal is a desktop app for Windows and macOS that finds and hides private information directly on a user's computer. It works with documents and can also check text as someone types in any app. Lawyers can use Conseal to remove or replace details that could identify their clients before sharing information with AI tools such as ChatGPT and Claude. The private information stays on the user's computer and is never sent elsewhere.

Small Law Firms Have the Same Responsibilities

AI tools make it easy to copy a client's file and paste it into a chat. But lawyers must keep their clients' information private. ABA Model Rule 1.6(c) says lawyers must take reasonable steps to stop client information from being shared without permission. ABA Formal Opinion 512 says lawyers should think about the risk of exposing private information before putting client details into generative AI tools. These responsibilities also cover paralegals and other staff members who work with client documents every day. Under Model Rule 5.3, lawyers are responsible for making sure their teams handle client information properly.

Most lawyers dealing with this problem work at small law firms. According to the American Bar Association, 7 out of 10 lawyers at law firms work alone or at firms with 10 or fewer lawyers. That is about 700,000 attorneys. They must follow the same privacy rules as lawyers at large firms, often called Big Law. But small firms usually do not have their own security teams. They also often cannot afford or access the special business AI plans and private AI systems that large firms use.

Tools that hide or remove information that could identify someone were originally made for large companies. Most tools available to small businesses simply cover up private details and work with only a few types of files, whether they run online or on a computer. There are still few tools that work entirely on a person's computer and replace identifying details while keeping enough meaning for AI to understand the information. Conseal is designed to fill this gap. It is made for individual professionals and helps lawyers hide or replace private client details before sharing information with outside AI tools.

“I discovered this problem while building a different AI tool,” said Ash Malepati, founder and CEO of Sprintfour. “Professionals wanted to use the tool, but they did not feel safe uploading private client information to an AI service run by another company. They had good reason to worry. Removing details that could identify someone by hand took hours. Other tools either sent the information to another company's cloud service, failed to catch too many private details, or could only cover up information in a few file types. We built Conseal from the beginning so each person could use the technology directly on their own computer. We are starting with lawyers because they were the people who told us most strongly that they needed something like this.”

How Conseal Works

Conseal uses small AI models that run directly on the user's computer. Finding, covering up and replacing private information all happen on that computer. The app connects to the internet only to check that the user has a valid license and to look for software updates. It never sends documents or anything the user types over the internet.

Conseal has these features:

• Redact: Permanently removes private information from documents, including court filings and documents shared during the legal process of exchanging evidence, called discovery. Lawyers who currently use Adobe Acrobat to cover up private details one at a time can reduce work that takes hours to just minutes.
• Anonymize: Replaces private details with labels that stay the same throughout a document, such as [PERSON_1]. This helps AI tools understand who is being discussed without seeing real names or other private details. Users can later put the original information back using a file stored on their own computer that keeps track of which label matches which original detail.
• Fast Mode and Intelligent Mode for Documents: Fast Mode checks a document once to save time. Intelligent Mode checks it in two steps and lets the user guide the process when working with more complicated documents.
• Live Detect: Checks text as the user types in any app, including the desktop versions of ChatGPT and Claude. Conseal gives a visible signal when it finds private information. With one click, the user can replace that information with labels. When finished, the user can put the original details back.
• Broad file support: Works with plain text, PDF, Word, Excel and CSV files.

Conseal is meant to be an early layer of protection that reduces the time people spend checking documents by hand. Users should still review the results before sharing anything.

Availability

Conseal is available now for Windows and macOS at conseal.ai. Many tools that cover up private information charge for each page, limit how many documents users can process each month, or work only with PDFs. These tools also often only let users black out private details. That can make it hard to understand who did what to whom in a document. Conseal gives users two choices: permanently black out private details or replace them with labels that help keep the original meaning clear. All features are included in one plan that costs $29.99 per device each month. There are no limits on the number of documents or pages. The app works the same way for lawyers working alone, small law firms and large company teams. Firms can also request a private version that runs on their own servers for faster performance.

For more information, visit conseal.ai.

Media Contact

Ash Malepati
Founder and CEO, Sprintfour Technologies
[email protected]