The individuals operating under the DragonForce banner are using social engineering for entry.
Defenders should urgently make sure they have read the CISA briefs on Scattered Spider and LAPSUS$ as it's a repeat of the 2022-2023 activity.
Links: https://www.cisa.gov/sites/default/files/2023-08/CSRB_Lapsus%24_508c.pdf
https://www.cisa.gov/sites/default/files/2023-11/aa23-320a_scattered_spider_0.pdf
I would also suggest these NCSC guides on incident management: https://www.ncsc.gov.uk/collection/incident-management
and effective cyber crisis comms: https://www.ncsc.gov.uk/guidance/effective-communications-in-a-cyber-incident
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