Ladakh security discussion
All our treks in Ladakh are in safe areas that have never experienced the separatist Kashmir troubles. In October 2019, the state of Jammu & Kashmir was split in two, and now Ladakh is a Union Territory ruled by the central government, completely separate from Kashmir.
Take a look at this map from the Economist to show the new Union Territory of Ladakh.

When travelling in Ladakh and on the Manali-Leh road be mentally prepared for roads blocked due to landslides, flooding streams and road works. Rarely, there could be random strikes or protests and other disturbances.
See your government advice:
Australian government travel advice
Personal safety
Ladakh is very safe, no pickpockets or theft risks, and I feel secure travelling openly with expensive camera gear.