ENISA published a report that provides anonymized and aggregated information about major telecom security incidents in 2021.
Every European telecom operator that suffers a security incident, notifies its national authorities which share a summary of these reports to ENISA at the start of every calendar year.
The reporting of security incidents has been part of the EU’s regulatory framework for telecoms
since the 2009 reform of the telecoms package.
This year the report includes data related to reports of 168 incidents submitted by national authorities from 26 EU Member States (MS) and 2 EFTA countries.
The incident had a significant impact on the victim, the total user hours lost (resulted by
multiplying for each incident the number of users by the number of hours) was 5,106 million user
hours. Experts noticed a huge increase compared to 841 million user hours lost in 2020. The reason for this is the impact of a notable EU-wide incident that was reported separately by three MS. ENISA has published technical guidelines on incident reporting under the EECC1, including on thresholds and calculating hours lost.
Below are the takeaways from incidents that took place in 2021:
Let me suggest reading the full report for additional information:
(SecurityAffairs – hacking, telecom security incidents)