The attack, discovered on Monday night, impacted the 4g/5g network, TV, voice services, and SMS services provided to more than seven million people. While the company was able to restore 3G services, others remained impacted. It even affected the ATM network of some large banks connected to the Vodafone 4g network.

Vodafone called the incident “a deliberate and malicious attack intended to cause damage.”

Mário Vaz, CEO of Vodafone Portugal, said in a statement that “our absolute priority is the restoration of our services. Our technical teams have been working non-stop from the moment this attack was found to reset the operation.”

For more information see: Cyberattack on Vodafone paralyses Portugal

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Marin Ivezic is a Cybersecurity & Privacy Partner in PwC Canada focused on risks of emerging technologies.