Kaspersky announces the availability of the Who Calls mobile app in Brazil, a solution aimed at protecting smartphone users against the growing wave of spam and phone call fraud. It is estimated that Anatel actions have already prevented more than 184.9 billion unwanted calls between June 2022 and December 2024. In this context, the app will help individuals to identify and block unknown calls or potential scams, including on WhatsApp.
Brazil faces nearly 5 thousand attempted attacks per day on mobile devices in 2024, and calls are a common path for traps that do not use malware. According to preliminary data from Kaspersky Who Calls, in the first five months of testing the solution, fraudulent calls increased from 2.19% in the first month (November 2024) to 10.12% in the fifth (March 2025). Unwanted calls also rose from 37.26% to 59.27%.
“In Brazil, there is an exaggeration of so-called commercials and advertisements – so much so that there are actions aimed at blocking these excesses by Anatel, but there are also many scams, mainly with financial motivation. With Kaspersky Who Calls, we have a proactive digital shield for people to block both calls. With our artificial intelligence, we can quickly learn and identify new formats of untimely calls and scams, turning people’s experience into an informed decision. We want Brazilians to regain control of their communication without compromising their security.“, says Leonardo Castro, e-commerce director of Kaspersky in Latin America.
How Kaspersky Who Calls Works
Kaspersky Who Calls uses artificial intelligence (AI) and user feedback to identify, classify, and block spam and fraud calls. When receiving a call from an unknown number, the app displays the number’s reputation (indicating if the number is already known as spam), the company category (type of activity), and the organization’s name.
The app also allows customers to classify suspicious numbers to the database, ensuring that these calls are automatically blocked in the future.
The free version of Kaspersky Who Calls offers essential features for call identification and blocking. The Premium version (R$19.90 per year) expands protection with features such as:
- WhatsApp Caller ID: Identifies and blocks spam and unwanted calls on WhatsApp, displaying information about the caller (e.g. bank or market research company).
- Call Blocking by Category: Allows blocking calls from specific categories of unwanted numbers.
- Outbound Call Protection: Alerts the user before making a call to a number identified as spam.
- Offline Mode: Informs and warns about suspicious calls even without internet connection, using offline databases stored on the phone.
For Android phone owners, the Premium version also offers blocking calls from foreign countries and numbers not in the contact list, as well as protection against SMS phishing.
Kaspersky Who Calls is now available for download in the app stores for iOS and Android, for more information, visit the link.
If you need help, check out the blog post with the step-by-step guide to install Kaspersky Who Calls.
*available for free in the iOS app version.
