That phone you unlocked led us to a server in Iceland where we managed to decrypt a communique between John Lark and this woman:

Mission: Impossible - Fallout (2018)
HUNLEY
A screenplay character in Mission: Impossible - Fallout (2018).
- lines
- 21
- words
- 408
- scenes
- 4
- dialogue
- 5.8%
- avg words / line
- 19
- shortest / longest
- 1 / 107
source review flagged 1 dialogue line
Sample dialogue
Lark and the Widow are meeting tonight to negotiate delivery of an unspecified package which we can only assume is our missing plutonium. They’ll make contact in the private lounger of the Grand Palais in Paris during her annual fundraising event. Details are in the file. If Lark is not at the Grand Palais by midnight, the Widow will leave, and sell the package to the highest bidder. This gives you two hours from now to find Lark.
scene 17, source scene 7 — EXT. AIRFIELD - NIGHTHis reputation precedes.
scene 19, source scene 9 — EXT. AIRFIELD - NIGHTOh good God, Hunt. Don’t tell me...
scene 17, source scene 7 — EXT. AIRFIELD - NIGHTAnd his team would be dead.
scene 19, source scene 9 — EXT. AIRFIELD - NIGHTYou’re sure about that.
scene 113, source scene 102 — INT/EXT. BACK-ALLEY - DAY
Bookends
Where would you like him delivered?