Isabel Tuson

See also the previous implementation of these features in in #147, and their removal in ae9c347e7fcf7fd25f004a58b0d18e8426b6f9e1.

This should also apply to collection descriptions in the collection index if it does not already.

Hi @Cyb3rWard0g, Mobile and ICS ATT&CK don't include sub-techniques at all, so the `x_mitre_is_subtechnique` field isn't currently part of their data model. [As noted in the USAGE document](https://github.com/mitre/cti/blob/master/USAGE.md#techniques), that's an...

Anyway, with regards to the mobile techniques which _do_ have the `x_mitre_is_subtechnique` property... my guess is they're techniques which were created after we changed the enterprise data model? I'll look...

## Techniques with `x_mitre_is_subtechnique` | name | created | modified | STIX ID | |:------|:---------|:---------|:-| SMS Control | 2020-09-11 15:14:33.730000+00:00 | 2020-10-22 17:04:15.578000+00:00 | attack-pattern--b327a9c0-e709-495c-aa6e-00b042136e2b Geofencing | 2020-09-11 15:04:14.532000+00:00 |...

@chrisante7 may have a more thorough answer, but I think the reason is that ICS simply doesn't track a lot of groups at present: https://collaborate.mitre.org/attackics/index.php/Groups

@lironbenbenishti what script are you referring to? The Excel representation of the knowledge base hosted on our [Working with ATT&CK](https://attack.mitre.org/resources/working-with-attack/) page doesn't limit output techniques to those mapped to groups,...

Ah yes that is actually our script -- we maintain that repo as well as all the other ones in the [mitre-attack](https://github.com/mitre-attack/) organization. That script actually generates a list of...

Unfortunately yes, that's the only reliable, extensible answer. I believe PRE is the only platform which has its own tactics, the other tactics are a mix of the other platforms....

I see you're way ahead of me regarding [my comment on your other PR](https://github.com/mitre-attack/attack-stix-data/pull/14#pullrequestreview-790544846). To quote something I wrote in my review there which is relevant to this issue: >We...