Does a ransom note prove who carried out the attack?¶

No. Names, logos and wording in a ransom note can be copied, reused by affiliates or deliberately false. They provide attribution leads, not proof of an offender group or person.

Compare incident-specific features¶

Preserve and compare note format, contact route, payment details, victim identifier, malware, infrastructure, leak activity, technical methods and timing with verified incidents. Similarity can support association, but shared templates, tools and services can produce the same features without common control.

Threat intelligence can assist if its source, date and confidence remain visible. A family or infrastructure match should not be restated as personal attribution.

Separate roles in the operation¶

Access brokers, developers, affiliates, infrastructure operators, negotiators and money handlers may perform different parts. The person who placed the note may not have written the malware or controlled payment.

State the exact level supported - malware family, affiliate activity, infrastructure, service operation or named group. Use access, tasking, communications and financial evidence before moving between those levels.