I appreciate that riot are working on more in depth communication and would like to humbly suggest/request that a third party security audit is conducted and posted for Vanguard along with a checksum which could be used to validate that the version of vanguard on users PCs has not been tampered with since said audit.
I think that actions like this could really show a commitment to security and transparency around this which might provide players with a little more than a "trust us!" and go a good way to earning said trust.
Thankyou. I am not sure on the feasibility but I will pass your suggestion on