Exploitation of Excessive Data Exposure is simple, and is usually performed by sniffing the traffic to analyze the API responses, looking for sensitive data exposure that should not be returned to the user. APIs rely on clients to perform the data filtering.

Dec 1, 2023 · Excessive Data Exposure: when an API provider sends back a full data object, typically depending on the client to filter out the information they need. from an attacker’s perspective, the ...

Oct 21, 2024 · This article explores 12 best practices to improve API security and prevent sensitive data exposure. It covers key areas such as strong authentication protocols, data encryption methods, API traffic management, and regular security testing.

Apr 17, 2024 · Excessive data exposure in API can have serious ramifications, from loss of sensitive information to a damaged brand reputation, to a negative user experience, and more. In this guide, you’ll learn the consequences of sensitive data API exposure, and discover some real-time solutions to reduce the risk.

Apr 7, 2025 · When these API's return too much data, we can speak of Excessive Data Exposure. A simple example we can give is an application which makes a call to grab the credit card details. The user does not see the CCV because it will be filtered out by the front-end client but the API still returns too much data. Example: "CVV": "677",

Instead of giving away entire data objects, craft specific API responses to all of the most common API calls to limit the flow of data to only fields necessary to complete a specific action. If absolutely necessary to return sensitive data, consider masking the data.

Aug 28, 2021 · Here are some basic steps on how we can protect the Excessive data exposure from an API and deal with data in a secure manner. AS we all are aware, protecting the PII data is a necessity...

Discover practical solutions and examples to prevent sensitive data exposure in RESTful APIs. Learn to secure data and avoid breaches effectively.

Dec 30, 2024 · Excessive data exposure in APIs occurs when an API reveals more data than necessary for its operation. This often results from improperly configured endpoints or poor data handling practices. Such exposure poses significant security threats, allowing potential attackers to access sensitive information through seemingly benign data requests.

Feb 22, 2023 · Excessive Data Exposure in API security can lead to serious consequences, such as the compromise of sensitive information. Such exposure includes returning sensitive-information in API responses, storing sensitive-information in clear-text and failing to properly-validate input from API requests.