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Vault contents, we need to know what they're keeping down there. Hack into their internal security feed to see inside.
— Lester's briefing.

Vault Contents is a mandatory prep mission featured in Grand Theft Auto Online as part of The Diamond Casino Heist update. It is a freeroam mission needed to progress The Diamond Casino Heist.

Description[]

This mission is the second preparation needed for the Diamond Casino Heist. The player needs to go to a semi-random location, such as the Galileo Observatory or Portola Drive Station, where they need to locate a Diamond Casino security guard.

Once located, the player needs to open the SecuroServ app on their phone and hack the guard's phone to obtain the login details. The hack will only progress if the player stays in proximity of the target. If the target is spooked, they need to be killed and the player must pick up their phone; they also receive a two-star wanted level which needs to be evaded before continuing with the mission.

Afterwards, the player needs to travel to the Casino and enter it. Once inside, they need to open the Sightseer app on their phone and search for the signal. A bar will appear on the lower right of the screen which shows the signal strength. There are different possible locations for the signal, such as the restrooms.

Once the signal is found, the player gains access to the security feed of various areas inside the casino. A maximum of two minutes can be spent looking at the security feed. They need to find the feed from inside the casino vault, where they need to identify the contents of the vault; this is most commonly cash (and always for the first heist) but can also be art or gold. Starting with the Valentine's Day 2020 event and occasionally during special event weeks, diamonds also have a chance to be found as the vault item.

The player can then continue looking through the feed or can leave the Casino and finish the mission.

Lester's Dialogue[]

Okay, here we go, let's find out what's in that vault. First, we need someone with the right log in credentials for their security system. I've tracked the rough location of a member of Duggan's security team using his phone signal. Head over there and find him.
— After starting the mission.
There he is. I've uploaded a SecuroServ app for you to hack his phone and get those login details. Thing works well, but... you'll need to stick close to get the data.
— After locating the security guard.
Excellent, that's exactly what I needed. Now head over to the casino.
— After successfully hacking the guard's phone without alerting him.
Okay, bring out your phone and search for a Wi-Fi signal we can piggyback on... and try not to look too conspicuous while you do it!
— When the protagonist enters the casino.
I'm in the system, time to have some fun.
— After locating the signal.
You only have a limited amount of time in the security feed, so move fast. Find what's in the vault and sniff around for whatever else they have tucked away down there, you might find something we can use to our advantage.
— After accessing the security camera feed.
Ah, what's that look like, the green stuff, eh? It's too much currency, so we'll still need to launder it through a buyer... Shouldn't be hard though. Head back to the arcade when you're ready.
— If cash is present in the vault.
Artwork. Nice. Not really my taste, but assets are still going crazy and we can make a small fortune. Come back when you're ready.
— - If artwork is present in the vault.
Gold's gonna be slower to haul outta there, but it's oh so shiny... and buyers love it in these uncertain times. Good job. Come back when you're ready.
— - If gold is present in the vault.
Holy shit, that's a boat load of diamonds. This is a big money maker... I smell a bidding war. Good job. Come back when you're ready.
— - If diamonds are present in the vault.

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Heists Blips-GTAV-80-JewelryHeist-Green
Fleeca Job
SetupsScope Out | Kuruma
FinaleThe Fleeca Job
Prison Break
SetupsPlane | Bus | Station | Wet Work
FinaleThe Prison Break
Humane Raid
SetupsKey Codes | Insurgents | EMP | Valkyrie | Deliver EMP
FinaleThe Humane Labs Raid
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SetupsCoke | Trash Truck | Bikers | Weed | Steal Meth
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Pacific Standard
SetupsVans | Signal | Hack | Convoy | Bikes
FinaleThe Pacific Standard Job
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Act 1:
The Data Breaches
PrepsParamedic Equipment | Deluxos | Akula
SetupsDead Courier | Signal Intercepts | Server Farm
FinaleThe Data Breaches
Act 2:
The Bogdan Problem
PrepsKeycards | ULP Intel | Riot Control Van | Strombergs | Torpedo ECU
SetupsAvenger | Rescue ULP | Salvage Hard Drives | Submarine Recon
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Act 3:
The Doomsday Scenario
PrepsMarked Cash | Recon | Chernobog | Flight Path | Test Site Intel | Onboard Computer
SetupsRescue Agent 14 | Escort ULP | Barrage | Khanjali | Air Defenses
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TreasureHunt-GTAO-Text
Photo Clue | Three Clues | Treasure Chest | Headshot Challenge | Bounty Target
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The Diamond Casino & Resort Blips-GTAO-679-Casino
Casino Missions Blips-GTAO-678-Agatha-YellowLoose Cheng | House Keeping | Strong Arm Tactics | Play to Win | Bad Beat | Cashing Out
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The Diamond Casino Heist TheDiamondCasinoHeist-GTAOe-RadarIcon-Intro
SetupEquipment | Casino Scoping
Heist Preps
General
Heist Prep
Vault Contents | Unmarked Weapons | Getaway Vehicles | Hacking Device | Vault Keycards | Guard Patrol Routes | Duggan Shipments | Security Intel | Power Drills | Security Pass | Masks
Silent & Sneaky
Heist Prep
Nano Drones | Vault Lasers | EMP Device | Infiltration Suits
The Big Con
Heist Prep
Gruppe Sechs Gear Part 1 | Gruppe Sechs Gear Part 2 | Bugstar Gear Part 1 | Bugstar Gear Part 2 | Maintenance Gear Part 1 | Maintenance Gear Part 2 | Yung Ancestor: Dead Weight | Yung Ancestor: After Party | Vault Drills | Firefighter Gear | NOOSE Gear
Aggressive
Heist Prep
Thermal Charges | Vault Explosives | Reinforced Armor | Tunnel Boring Machine
FinaleSilent & Sneaky | The Big Con | Aggressive
A Superyacht Life Blips-GTAO-455-YachtHUDIcons-GTAO-BridgeOverboard | Salvage | All Hands | Icebreaker | Bon Voyage | D-Day
The Cayo Perico Heist TheCayoPericoHeist-GTAOe-RadarIcon-Intro
Heist Preps
IntelGather Intel
Approach VehiclesKosatka | Alkonost (Pilot) | Velum | Stealth helicopter (Pilot) | Patrol Boat | Longfin
EquipmentDemolition Charges | Safe Code | Plasma Cutter | Fingerprint Cloner | Cutting Torch
Weapon LoadoutUnmarked Weapons
DisruptionDisrupt Weapons | Disrupt Armor | Disrupt Air Support
FinaleThe Cayo Perico Heist
Robbery Contracts Blips-GTAO-779-AutoShopPropertyBlips-GTAO-783-CarRobberyBoard
SetupImpounded Car
The Bank ContractThermal Charges | Signal Jammers | The Robberies
The Data ContractSafehouse Location | Defenses | The Robbery
The Superdollar DealTracking Device | Virus Software | The Robbery
The Prison ContractInside Man | Access Point | The Hit
The Agency DealEntry Point | Security Pass | The Raid
The E.C.U JobTrain Inventory | Schedule | The Robbery
The Lost ContractLab Locations | Transport Method | The Job
The Union Depository ContractElevator Key | Vault Code | The Robbery
VIP Contract Blips-GTAO-826-AgencyBlips-GTAO-521-Laptop
The Contract: Dr. Dre
On Course
SetupData Recovery
Nightlife LeakThe Nightclub | The Marina | Nightlife Leak
High Society LeakThe Country Club | Guest List | High Society Leak
South Central LeakDavis | The Ballas | South Central Leak
Studio Time | Don't Fuck With Dre
Security Contracts Blips-GTAO-826-AgencyBlips-GTAO-521-LaptopAsset Protection | Gang Termination | Rescue Operation | Liquidize Assets | Recover Valuables | Vehicle Recovery
Payphone Hits Blips-GTAO-817-Payphone-BlueThe Hitmen | The Popstar | The Tech Entrepreneur | The Trolls | The Judge | The Dealers | The CEO | The Cofounder
Short Trips Blips-GTAO-819-MusicStudioBlips-GTAO-496-ProductionWeed-GreenSeed Capital | Fire It Up | OG Kush
Operation Paper Trail Blips-GTAO-AgentULP-YellowULP - Intelligence | ULP - Counterintelligence | ULP - Extraction | ULP - Asset Seizure | ULP - Operation Paper Trail | ULP - Cleanup
First Dose Blips-GTAO-739-Ron-YellowBlips-GTAV-355-Devin-YellowWelcome to the Troupe | Designated Driver | Fatal Incursion | Uncontrolled Substance | Make War not Love | Off the Rails
Last Dose Blips-GTAV-355-Devin-YellowThis is an Intervention | Unusual Suspects | Friedmind | Checking In | BDKD
Fooligan JobsCrop Dustin' | Heavy Metal | Liquid Assets | Working Remotely | Write-Off
LSA Private Work Blips-GTAO-589-NHPVehicle1Blips-GTAO-606-NHPTurretConsole
Project OverthrowReporting for Duty | Falling In | On Parade | Breaking Ranks | Unconventional Warfare | Shock & Awe
LSA OperationsDirect Action | Surgical Strike | Whistleblower
Salvage Yard Robberies Blips-GTAO-SalvageYardBlips-GTAO-SalvageYardRobbery
The Cargo Ship Robbery
Scope OutDocks
Planning WorkSabotage And Disguise | Skylift | Disrupt Air Support
TasksBolt Cutters | Boat | Flares | Masks
FinaleThe Cargo Ship Robbery
The Duggan Robbery
Scope OutMaze Bank Arena
Planning WorkBypass Module | VIP Pass | Disrupt Armor
TasksLS Panic Trailer | LS Panic Outfits | Masks
FinaleThe Duggan Robbery
The Gangbanger Robbery
Scope OutMission Row Police Station
Planning WorkPolice Maverick | Tactical Gear | Disrupt Equipment
TasksStun Guns | Weapon Stash | Getaway Vehicle | Masks
FinaleThe Gangbanger Robbery
The Podium Robbery
Scope OutDiamond Casino
Planning WorkLSDS Disguises | Storage Key Card | Disrupt Personnel
TasksGas Masks | Rappel Equipment | Sabotage Casino | Masks
FinaleThe Podium Robbery
The McTony Robbery
Scope OutSubmarine
Planning WorkTony's Submersible | Sonar Equipment | Disrupt Weapons
TasksSecurity Outfits | Cutting Torch | Masks
FinaleThe McTony Robbery
The Cluckin' Bell Farm Raid Blips-GTAO-VincentEffenburger-Yellow
SetupSlush Fund | Breaking and Entering
PreparationConcealed Weapons | Hit and Run
DisruptionDisorganized Crime
FinaleScene of the Crime
Freemode Missions [?]
Ammu-Nation Contract | Auto Shop Service | Clubhouse Bar Resupply | Custom Bike Shop Service | DJ Requests | Exotic Exports | Nightclub Management | Random Events | Stash Houses | Taxi Work | Tow Truck Service
SecuroServ/MCVehicle Cargo (Steal Missions | Sell Missions) | Special Cargo (Steal Missions | Sell Missions | Warehouse Defend | Export Mixed Goods) | Air Freight Cargo (Steal Missions | Sell Missions | Source Missions) | Bunker Supplies (Steal Missions | Bunker Defend | Sell Missions | Research) | MC Business Supplies (Steal Missions | MC Product Defend | Sell Missions) | Nightclub Goods (Business Battles | Steal Missions | Nightclub/Nightclub Cargo Defend | Sell Missions) | Acid Product (Acid Lab Setup | Steal Missions | Sell Missions)
Missions in GTA Online (Category) | Missions | Beta Missions
Missions marked with " † " were removed from later updates.

DLC Content Missions
The Chop Shop | San Andreas Mercenaries | Los Santos Drug Wars | The Criminal Enterprises | The Contract | Los Santos Tuners | The Cayo Perico Heist | Los Santos Summer Special | The Diamond Casino Heist | The Diamond Casino & Resort | Arena War | After Hours | Southern San Andreas Super Sport Series | The Doomsday Heist | Smuggler's Run | Gunrunning | Cunning Stunts: Special Vehicle Circuit | Import/Export | Bikers | Cunning Stunts | Further Adventures in Finance and Felony | Lowriders: Custom Classics | Be My Valentine | January 2016 Update | Festive Surprise 2015 | Executives and Other Criminals | Halloween Surprise | Lowriders | Freemode Events Update | Ill-Gotten Gains Part 2 | Ill-Gotten Gains Part 1 | Heists | Festive Surprise | The Last Team Standing Update | The San Andreas Flight School Update | The Independence Day Special | The "I'm Not a Hipster" Update | The High Life Update | The Business Update | The Valentine's Day Massacre Special | Holiday Gifts | Beach Bum Update
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