Samsung’s flagship telephones had been quietly in danger from adware for a 12 months

If there’s one factor everybody values on any smartphone, whether or not it is an Android or an iPhone, it is security. We preserve a variety of private knowledge on our telephones these days, and the very last thing anybody desires is their private data falling into the mistaken palms. Nevertheless, despite the fact that our telephones are consistently up to date with new firmware and safety patches, it is all the time attainable for a safety vulnerability to slide via the cracks, and that is sadly what lately occurred with Samsung.

Whereas Samsung Galaxy phones are identified for his or her sturdy security measures, together with Samsung Knox, a brand new report reveals that the telephones had been susceptible to a serious malware assault for almost a 12 months (by way of Ars Technica). The invention was made by cybersecurity researchers at Palo Alto Networks’ Unit 42 division, who uncovered the adware vulnerability, which they’ve named “Landfall.”

The Android adware particularly focused Samsung Galaxy telephones, with the attackers exploiting a zero-day vulnerability in Samsung’s Android picture processing library to deploy the adware for surveilling and extracting knowledge from customers, together with microphone recording, location monitoring, messages, and name logs.

In keeping with Unit 42, Landfall remained an energetic vulnerability on Samsung telephones for months, remaining undetected till Samsung was alerted about it and patched it in April 2025. Unit 42 believes that the Landfall adware assault was primarily utilized in 2024 and early 2025 for “focused intrusion actions within the Center East.”

What’s a zero-day vulnerability?

It is a safety flaw that builders had been unaware of till it was exploited

In the event you’re unfamiliar with what a zero-day vulnerability is, it is a safety flaw that’s exploited earlier than the developer even is aware of about it. This implies they’ve had zero days to repair it, so time is of the essence.

What made this Landfall adware assault significantly malicious is that it could possibly be deployed with out the consumer even being conscious of it. How is that this attainable? On this case, Unit 42 found that Landfall contaminated customers’ telephones via a malicious DNG picture file containing adware, which could possibly be despatched by way of a messaging app like WhatsApp.

Landfall is known as a “zero-click” assault as a result of the consumer would not have to take any motion. Merely processing the picture for show would trigger the cellphone to mechanically and unknowingly load the adware, which exploited the vulnerability in Samsung’s Android picture processing library that I discussed earlier. This basically signifies that the adware could possibly be put in on a cellphone with out the consumer ever being conscious of it.

Unit 42 was in a position to uncover the existence of Landfall after it seen that two comparable safety flaws had been patched for iOS and WhatsApp. It was additionally in a position to establish the focused machine fashions for this assault, which included the Samsung Galaxy S23 and S24 collection, the Galaxy S22, the Galaxy Z Fold 4, and the Z Flip 4.

It is price reiterating that Landfall is now not an energetic menace, as Samsung patched the vulnerability in April 2025 with a safety replace. Subsequently, in case you have a Samsung cellphone and have stored it up to date this 12 months, you don’t have anything to fret about. To simply verify for the most recent updates in your Samsung cellphone, you possibly can go to Settings > Software program replace > Obtain and Set up.