Stalkerware is software for mobile devices that runs in the background. The purpose of this tool is to monitor all activity on a mobile phone without necessarily the user\'s authorization. Some of the software\'s features include access to the device\'s camera, real-time location tracking, and message reading. All of this access is granted without the phone\'s owner\'s knowledge. There are also no visible signs of its use, as there are no visual indications that it is being used by someone else. Kaspersky is an international cybersecurity company with a presence in approximately 195 countries worldwide. Some of the data reported by the agency indicates that this tool is primarily used to monitor a computer\'s activity in the background. \"Mexico is among the top 10 countries with the most cases of stalkerware worldwide, even though 87% consider it unacceptable and 50% of those surveyed are concerned about being spied on by their partners,\" they told digital media outlets. Another thing to be aware of regarding this software is that its installation is very easy. The app is available in app stores and cannot be removed, as it is registered under parental control classifications. This validates its use for commercial purposes. Recommendations To avoid becoming a victim of this type of software, some recommendations we can offer are: Do not lend your mobile phone, and if possible, keep it locked with a password. Additionally, you can regularly check the app store to ensure that no apps have been installed without your authorization. You can also review the permissions granted to other applications and delete those you do not use. If you are a victim of this software and are unaware of it, some tips to keep in mind to identify it are increased data usage and decreased phone performance. Your phone will be slower when interacting with applications. Furthermore, your battery will drain more quickly because background activity will be constant.