Longest cyberattacks: experts highlight trusted relationships as key vector

In 2023, more than 1/5 of cyberattacks persisted for over a month, the annual Kaspersky Incident Response 2023 report has revealed, with trusted relationships emerging as one of the main attack vectors in these prolonged cases.

The report draws on the results of Kaspersky’s cyberattack investigations throughout the year, gathered when supporting organizations seeking incident response assistance or when hosting expert events for their internal incident response teams.

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Kaspersky Incident Response 2023 report indicates that long-lasting cyberattacks that persist for more than a month constituted 21.85% of the total, increasing from 2022 by 5.55%.

One notable trend observed in these attacks was the exploitation of trusted relationships as a primary vector. Compromises leveraging trusted relationships have occurred previously,

As this method of attack enables threat actors to infiltrate multiple victims through a single compromised organization, investigative teams face several additional challenges. Firstly, initially targeted organizations don’t always recognize the importance of thorough investigations and may be reluctant to cooperate. 

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