Apple has long maintained strict control over the App Store, ensuring that only applications meeting its security, privacy and content guidelines can be distributed to iPhone users. However, with the EU’s Digital Markets Act now in effect, Apple has been forced to loosen its grip, allowing sideloading through third-party marketplaces such as AltStore PAL.
This shift introduces new cybersecurity risks that many consumers may not fully understand. The recent launch of Hot Tub, the first Apple-notarized porn app available through AltStore PAL, highlights a major turning point in Apple’s ecosystem. While Apple has not officially approved the app for the App Store, it was still required to notarize it, meaning the app was reviewed for basic security risks but not its content or overall safety.
Apple has publicly voiced concerns about the dangers of distributing adult content apps, warning that it could undermine user trust and create safety risks, especially for minors. However, this is just one layer of a much bigger issue — the cybersecurity threats that come with third-party app installations, data privacy risks and malware concerns.
The Growing Threat Of Sideloaded Apps
With the introduction of third-party app stores on iOS, users now have access to apps that bypass Apple’s stringent security policies. While this opens doors for greater software freedom, it also exposes iPhone users to significant cybersecurity risks that were previously rare on iOS.
Here is what users need to be aware of:
Increased Exposure to Malware Privacy
Unlike the official App Store, third-party marketplaces often lack strict oversight, making them more susceptible to hosting malicious or compromised apps. Even though Apple’s notarization process screens for malware, it does not guarantee an app is completely safe.
Cybercriminals may exploit the shift toward sideloading to distribute trojanized versions of legitimate apps, embedding malware designed to steal credentials, monitor user activity or inject spyware onto devices.
Privacy Risks from Unregulated Apps
Apple has long enforced strict privacy policies to regulate user data collection, ensuring apps meet high security and transparency standards. However, third-party marketplaces operate outside these rules, creating potential risks for users. Some apps may extensively track user activity, collecting data beyond what is necessary. Others might share this information with third parties, often without clear disclosure or user consent. Additionally, the lack of transparency in how personal data is stored and used raises serious concerns.
Exposure to Fraudulent and Predatory Content
The introduction of adult content apps raises serious questions about content moderation, safety and ethical concerns. While platforms like AltStore PAL claim they do not promote these apps by default, their availability could expose users — especially minors — to unsuitable or harmful material.
Increased Risks for Minors
Apple’s warning regarding child safety risks is particularly valid. Without Apple’s traditional app approval system, parents have fewer safeguards to prevent children from accessing content that would otherwise be banned from the App Store.
6 Must-Know Consumer Protection Tips
As sideloading becomes a reality for iPhone users in the EU and potentially beyond, users must take an active role in their own mobile app cybersecurity. Here are essential steps to mitigate risks while using third-party marketplaces:
1. Stick to Trusted Sources
Not all third-party app stores have the same security measures. Platforms like AltStore PAL may implement some security protocols, but others may be entirely unregulated. Only download apps from sources with a strong reputation and avoid unfamiliar marketplaces.
2. Check App Permissions
Before installing any app — especially one from an external source — review its permissions carefully. Be cautious if an app requests access to your camera, microphone, location or contacts without a clear reason. If an app asks for more access than it reasonably needs, consider it a red flag.
3. Keep iOS and Security Updates Enabled
Apple frequently releases security updates to patch vulnerabilities that hackers may try to exploit. Always ensure your iPhone is running the latest iOS version to reduce the risk of attacks from compromised apps.
4. Use Apple’s Built-in Privacy Features
Despite Apple’s shift toward sideloading, several iOS security features still offer strong protection. Make sure to:
- Enable App Tracking Transparency (Settings > Privacy > Tracking)
- Use Lockdown Mode if you are highly concerned about security threats
- Restrict app installation permissions on children’s devices through parental controls
5. Avoid Entering Personal or Financial Information in Unverified Apps
If an app requires sensitive personal details, financial information or biometric data, ensure it comes from a fully verified and reputable source before inputting any details.
6. Consider a Mobile Security App
While Apple’s ecosystem has historically been secure, with sideloading now a possibility, it may be worth investing in a reliable mobile security app that can scan for malicious software and phishing threats.
