User Guide & Documentation
"Your Complete Protection Against Online Threats"
Version 1.0 | January 2026This guide will help you understand how Sentinel Shield protects you from scams, hackers, and online threats. No technical knowledge required!
Before we explain how Sentinel Shield protects you, let's understand what you're being protected from. Online threats have become incredibly sophisticated - even tech-savvy people fall victim to modern scams.
You get a call claiming to be from the IRS, your bank, or tech support. They say there's a problem with your account and ask for money or personal information.
Example: "This is the IRS. You owe $3,500 in back taxes. Pay now with gift cards or face arrest."
You receive a text that looks like it's from Amazon, FedEx, or your bank. It contains a link to a fake website designed to steal your information.
Example: "USPS: Your package cannot be delivered. Update your address here: bit.ly/xyz"
Emails that look like they're from companies you trust - your bank, Netflix, PayPal - but are actually from scammers wanting your password.
Example: "Your Netflix account is suspended. Click here to update payment." (From: [email protected])
Files that look harmless but contain viruses. These can steal your passwords, lock your files for ransom, or give hackers access to your computer.
Example: Downloading what you think is a PDF invoice, but it's actually a virus.
Scammers try to trick you into connecting your wallet to fake websites or signing transactions that drain all your crypto.
Example: A website claiming to offer free crypto if you "connect your wallet."
Sentinel Shield acts like a security guard for your entire digital life. It monitors all the ways threats can reach you and stops them before they can harm you.
Think of Sentinel Shield as a smart filter that sits between you and everything coming into your phone or computer. Every call, text, email, website, and file passes through this filter. If something looks dangerous, it gets blocked or you get warned.
| Traditional Security Tools | Sentinel Shield |
|---|---|
| Only protects against viruses | ✓ Protects against ALL threat types |
| You need multiple apps | ✓ One app does everything |
| Requires technical knowledge | ✓ Works automatically - no expertise needed |
| Only catches known threats | ✓ AI detects new, never-seen-before threats |
| You configure everything | ✓ Install once, protection starts immediately |
| Computer-only protection | ✓ Protects phone, computer, and browser |
Setting up Sentinel Shield takes less than 5 minutes. Here's how to get protected:
Search for "Sentinel Shield" in the App Store (iPhone) or Google Play Store (Android). Download and install the free app.
Open the app and create your free account using your email address. You can also sign up with Google or Apple ID.
The app will ask for permissions to protect you. This is normal and necessary:
Toggle on the protection features you want. We recommend enabling everything for maximum security.
That's it! Sentinel Shield now works automatically in the background.
Visit sentinel.blockstar.world and click "Download for Desktop". Choose your operating system.
Run the downloaded installer and follow the on-screen instructions. Takes less than 2 minutes.
Open Sentinel Shield and sign in with your account, or create a new one.
The app will guide you through enabling file monitoring, clipboard protection, and DNS protection.
macOS may block Sentinel Shield from opening because it was downloaded from the internet. This is a standard macOS security check — not a problem with the app. Follow these two steps once to fix it.
This strips the quarantine flag macOS places on files downloaded from the internet:
This applies an ad-hoc local code signature so macOS accepts the app as valid:
After both commands complete, launch Sentinel Shield normally from your Applications folder. macOS will no longer block it.
The xattr command clears the quarantine metadata, and codesign creates a fresh local signature. Both are needed — running only one may not fully resolve the Gatekeeper block.
Visit the Chrome Web Store and search for "Sentinel Shield". Click "Add to Browser".
Click the puzzle piece icon and pin Sentinel Shield. The shield icon turns green when active.
The extension now protects you while browsing and analyzes crypto transactions.
Use Sentinel Shield on ALL your devices for complete protection. Your account syncs across devices, so you only need to set it up once on each.
Once you open Sentinel Shield, you'll see your protection dashboard. Here's what everything means:
Got a suspicious text, email, or website? Here's how to check if it's safe:
Open Sentinel Shield and tap the "Scan" tab
Choose what you want to scan: URL, Email, Phone Number, or Transaction
Paste or type what you want to check
Tap "Analyze" and wait a few seconds
Read the results - you'll get a clear safe/dangerous verdict with explanation
When someone calls you, Sentinel Shield instantly checks the number against our database of known scam numbers.
| If the number is... | Sentinel Shield will... |
|---|---|
| A known scam number | Block the call automatically - your phone won't even ring |
| A suspicious pattern (VOIP, spoofed) | Show a warning screen so you can decide |
| In your contacts | Let it through normally - your friends are safe! |
| Unknown but not suspicious | Let it through with no interruption |
Every incoming text message is scanned in real-time. Our AI looks at:
When you paste a suspicious email into Sentinel Shield, the AI analyzes:
If you use crypto wallets like MetaMask, Sentinel Shield provides extra protection:
When internet connectivity is unavailable, Sentinel Shield falls back to a local AI engine that uses pattern matching, heuristics, and cached threat data to maintain protection. This ensures you're never unprotected, even offline.
Never connect your wallet to a website just because someone sent you a link. Always verify the website address carefully. Scammers create sites like "openseaa.io" (note the extra "a") to trick you.
When Sentinel Shield detects something dangerous, don't panic! Here's exactly what to do:
Sentinel Shield uses different alert levels to help you understand the severity of threats:
| Alert Type | What It Means | What To Do |
|---|---|---|
| CRITICAL | Known active threat - high danger | Do NOT proceed. Block immediately. |
| HIGH | Very likely dangerous | Avoid. Only proceed if 100% sure. |
| MEDIUM | Suspicious but uncertain | Proceed with caution. Verify independently. |
| LOW | Minor concern detected | Probably safe, but be aware. |
| SAFE | No threats detected | You're good to go! |
You can customize which notifications you receive. Go to Settings > Notifications to choose:
This section is for users who want to earn rewards by supporting the Sentinel Shield network. If you're not familiar with cryptocurrency, you can skip this section - the free protection features work without any staking!
Staking means locking up SHIELD tokens (our cryptocurrency) to help support the network. In return, you earn rewards - currently 5% per year. Think of it like putting money in a savings account that earns interest.
Get SHIELD tokens (buy from an exchange or participate in the presale)
Open Sentinel Shield and go to the Staking tab
Connect your crypto wallet (MetaMask recommended)
Enter the amount you want to stake (minimum 100 SHIELD)
Click "Approve" then "Stake" - this requires two transactions
Watch your rewards grow! Claim them anytime.
| What You Need to Know | Details |
|---|---|
| Annual Reward Rate | 5% APR |
| Minimum Stake | 100 SHIELD tokens |
| Withdrawal Wait Time | 7 days after you request unstaking |
| Emergency Exit | Available anytime, but you lose pending rewards |
| Network | BlockStar Mainnet (Chain ID: 5512) |
| Staking Contract | 0xd31F82f94b72F21982d78e204487ac92BfE30d01 |
When you stake, you earn a Sentinel Score (1 point per 100 SHIELD staked). Higher scores unlock benefits like premium features and governance voting rights. If you stake 10,000+ SHIELD, you become a Validator and can participate in verifying threat reports.
If you find a bug or security vulnerability, please report it to [email protected], BlockStar Group or BlockStar Page . We take all reports seriously and may reward significant findings through our bug bounty program.
Together, we're making the int