QR Code Scam Checklist: What to Check Before You Scan
A QR code is a shortcut, not proof that the destination is trustworthy. Use this quick check before opening a link, paying, signing in, or installing an app.
Use the QR safety checklistPayments, accounts, and security
Online Safety
Check warning signs, account permissions, investing and lottery risks, suspicious instructions, and security updates before taking the next step. Browse 13 guides, starting with the most recently reviewed.
Rails Active Storage CVE-2026-66066: Patch, Investigate, Then Rotate Secrets
Check whether a Rails app meets the Active Storage and libvips exposure conditions, install both required updates, use the official forensic tools, and plan credential rotation.
Work through the Rails CVE response order
An Investment Pitch in an Instagram DM? Check Before You Send Money
If an Instagram account pitches an investment, work through these identity checks, warning signs, evidence-saving steps, and reporting options before you send money.
Check an investment DM
KOSPI Circuit Breakers: What Investors Should Check Now
South Korea’s KOSPI triggered circuit breakers on July 28 and 29. Learn how halts affect orders, how sidecars differ, and what changes for single-stock leveraged products.
Check the halt, order, and leverage rules
Korea’s Pension Lottery 720+: Odds, Tax, and Claim Rules
Learn how Korea’s Pension Lottery 720+ pays prizes, how its 1-in-5-million top-prize odds are calculated, and where to check, claim, and protect a ticket.
Check the odds, tax, and claim steps
High-Demand Tickets Sell Out Fast: What to Check Before You Pay
A new U.S. ticket-bot case shows how bulk resellers can get around purchase limits. Here is how to verify the seller, compare the real total, and check transfer and refund terms before paying.
Check the seller, total, and transfer terms
Instagram’s “AI info” Label: What It Can—and Can’t—Tell You
Meta says it will sign the EU transparency code for AI-generated content. Here is how Instagram’s existing AI info label works—and what to check when no label appears.
Understand the label and verify the post
iOS 26.6 Security Update: Check Your iPhone or iPad First
Check whether iOS or iPadOS 26.6 supports your device, then work through backup, power, Wi-Fi, installation, and the final version check.
Check support and update steps
Meta AI Can Connect to Email and Calendar—Check the Permissions First
Meta AI is adding connected email and calendar features, scheduled briefings, recurring jobs, research, and slides. Here is what to check before granting Google Account access.
Check the rollout, permissions, and recurring jobs
A Steam Forum Fix Tells You to Run PowerShell: Stop and Check First
A reported Steam forum campaign used fake fixes to install an XMRig cryptominer. Here is the calm way to verify game files, scan Windows, and secure your accounts.
Check a suspicious Steam fix safely
Facebook Verified and Seller: What They Change—and What They Don’t
Facebook now has a free identity badge and a dedicated Marketplace Seller app. Here is what each one does, where availability remains limited, and why a badge is not a safe-deal guarantee.
Check the badge, app, and dealChrome 150 Security Update: Check Your Version, Then Relaunch
Chrome 150 fixes four high-severity security issues. Here is the short, non-alarmist way to check your desktop or Android version and finish the update properly.
Check the Chrome 150 update
TikTok Teen Accounts: A Five-Minute Privacy Check Beyond the Private Toggle
The European Commission’s findings on TikTok’s protections for minors remain preliminary. Here is a practical check of visibility, account suggestions, downloads, messages, and Family Pairing.
Check a teen account’s visibility