Mobile / Messaging

Security software and tool platforms, including but not limited to, instant messaging, may be classified with the "Ethical Hacking & Cybersecurity" entity type.

Communication & Messaging

Videoconferencing and instant messaging

There isn't a category that exactly matches, but the closest is "Other / Unclassified" with a context of a misc hodgepodge or instant messaging companion chatbots.

(Note: The entity title "Free Private Accounts Group" contains general and common keywords related to creating a private group on platforms like social networking sites or messaging apps, which generally pertain to privacy permissions) Cryptocurrency & Trading

Security (Ethical Hacking & Cybersecurity) relates to telegram which is a messaging service with a strong focus on privacy, which could lean more towards security shortcomings of diplomats.

Telegram & Messaging

Chat / Messaging

Messaging

Communications (This category seems the most specific and relevant as Telegram is a messaging application for communication.)

Messaging and Bulk SMS, however that is not provided and is not present in the provided list.