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Three cybersecurity developments reported in October 2025 addressed different audiences: WhatsApp announced a way to protect chat backups with passkeys, Russian authorities said they had arrested people suspected of involvement with Meduza malware, and Mastercard introduced a threat-intelligence service for financial institutions. The arrest account remains an allegation, while Mastercard’s performance figures are company-reported claims.
WhatsApp announced passkey-encrypted chat backups
On October 30, 2025, WhatsApp announced that users would be able to protect chat backups with passkeys. Rather than requiring a separate password or a 64-digit encryption key, the feature lets a user authenticate with a fingerprint, face, or screen-lock code. WhatsApp described the change as a way to make encrypted backups easier to access without giving up their protection. Meta’s announcement explains the feature.
WhatsApp said the rollout would happen gradually over the following weeks and months. That was the plan at announcement; availability on particular devices or in particular regions has not been established here. The announcement also does not establish compatibility with specific password managers.
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Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Russian authorities said they arrested Meduza malware suspects
Russia’s Interior Ministry said a group had been arrested on suspicion of creating, using, and distributing Meduza malware. These are allegations reported by authorities, not findings of guilt or convictions. The ministry’s account is in Russian.
#1 Best Overall
- POWERFUL SECURITY KEY: The Security Key C NFC is the essential physical passkey for protecting your digital life from phishing attacks. It ensures only you can access your accounts.
- WORKS WITH 1000+ ACCOUNTS: Compatible with Google, Microsoft, and Apple. A single Security Key C NFC secures 100 of your favorite accounts, including email, password managers, and more.
- FAST & CONVENIENT LOGIN: Plug in your Security Key C NFC via USB-C and tap it, or tap it against your phone (NFC) to authenticate. No batteries, no internet connection, and no extra fees required.
- TRUSTED PASSKEY TECHNOLOGY: Uses the latest passkey standards (FIDO2/WebAuthn & FIDO U2F) but does not support One-Time Passwords. For complex needs, check out the YubiKey 5 Series.
- BUILT TO LAST: Made from tough, waterproof, and crush-resistant materials. Manufactured in Sweden and programmed in the USA with the highest security standards.
Recorded Future News reported that three suspected developers were arrested. It described Meduza Stealer as an information-stealing malware service offered through Russian-language forums and Telegram channels. Meduza Stealer is not the same name as Medusa ransomware; the report concerns an information stealer.
Mastercard introduced a threat-intelligence service for financial institutions
In October 2025, Mastercard announced Mastercard Threat Intelligence, a service intended for issuing and acquiring institutions. It combines Mastercard’s payment-fraud insights and network visibility with threat intelligence from Recorded Future. It is an institutional service, not a consumer security product. Mastercard’s Europe announcement describes the offering.
Rank #2
- POWERFUL SECURITY KEY: The YubiKey 5 NFC is the most versatile physical passkey, protecting your digital life from phishing attacks. It ensures only you can access your accounts
- WORKS WITH 1000+ ACCOUNTS: Compatible with popular accounts like Google, Microsoft, and Apple. A single YubiKey 5 NFC secures 100+ of your favorite accounts, including email, password managers, and more
- FAST & CONVENIENT LOGIN: Plug in your YubiKey 5 NFC via USB and tap it, or tap it against your phone (NFC), to authenticate. No batteries, no internet connection, and no extra fees required
- MOST SECURE PASSKEY: Supports FIDO2/WebAuthn, FIDO U2F, Yubico OTP, OATH-TOTP/HOTP, Smart card (PIV), and OpenPGP. That means it’s versatile, working almost anywhere you need it
- PRIMARY & SPARE KEYS: Just like having a spare house key, we recommend buying two YubiKeys - one for daily use and one as a spare. That way you’ll never get locked out of your accounts
What the service includes
- Card-testing detection
- Digital-skimming intelligence
- Merchant threat intelligence
- Payment-ecosystem reporting
- Payment-intelligence reports
These are features Mastercard says it offers; they are not an independent assessment of how effective the service is.
Do these 3 things before closing this tab:
1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minuteHow to interpret Mastercard’s reported figures
Mastercard’s October 28, 2025 Europe announcement credited Datos Insights with a finding that 57% of global fraud leaders said they learned of cyber breaches only after fraud losses began. Mastercard also said a six-month market test helped ecosystem partners identify and take down malicious domains that had affected nearly 9,500 ecommerce sites and were linked to an estimated $120 million in fraud. The latter figures describe Mastercard’s company-reported test results and estimates, not a general performance guarantee or independent evaluation.
Quick Recap
Best Value
- Ultra-Compact FIDO2 Security Key - Plug-and-stay or carry on a keychain. This USB-A hardware security key offers portable, always-on protection for desktop and mobile use. (Item Size: 0.75 X 0.74 IN x 0.25 IN)
- USB-A Hardware Key for All Devices - Works with USB-A ports on PC, Mac, Android, and other laptop/notebook device. Enables secure, cross-platform login with FIDO2.0 passkey support.
- FIDO Certified Security Key - Meets FIDO and FIDO2 standards. Works with Google, Microsoft, GitHub, Dropbox, and more. Please check service compatibility before purchase.
- Passwordless Login with Passkey - Supports passkey login via WebAuthn and CTAP2. Enjoy password-free sign-ins where supported. Not all websites or services currently support passkeys.
- Advanced Multi-Factor Authentication - Offers 200 FIDO2 passkey slots and 50 OATH-TOTP slots. Strong, flexible 2FA/MFA support across various apps and authentication platforms.
Rank #4
- Security Key : Protect your online accounts against unauthorized access by using FIDO2 and U2F authentication with T110. It's the world's most protective security key that works with windows, Mac OS, Linux as well as Chrome, Firefox, Edge and many other major browsers.
- Certified with the new FIDO2 standard, T110 provides the benefit of fast login and strong protection against phishing, account takeover as well as many other online attactks.
- Works with : Bank of America, Github, Google, Microsoft, DUO, Twitter, Facebook, Dropbox, Apple, ebay, BINANCE, mor and more.
- Fits USB-A port : Insert the T110 security key into the USB-A port of each service and log in conveniently with one touch
- For the driver download and user guide, please visit TrustKey Solutions Home support page.
Rank #3
- POWERFUL SECURITY KEY: The Security Key NFC is the essential physical passkey for protecting your digital life from phishing attacks. It ensures only you can access your accounts.
- WORKS WITH 1000+ ACCOUNTS: Compatible with Google, Microsoft, and Apple. A single Security Key NFC secures 100 of your favorite accounts, including email, password managers, and more.
- FAST & CONVENIENT LOGIN: Plug in your Security Key NFC via USB-A and tap it, or tap it against your phone (NFC) to authenticate. No batteries, no internet connection, and no extra fees required.
- TRUSTED PASSKEY TECHNOLOGY: Uses the latest passkey standards (FIDO2/WebAuthn & FIDO U2F) but does not support One-Time Passwords. For complex needs, check out the YubiKey 5 Series.
- BUILT TO LAST: Made from tough, waterproof, and crush-resistant materials. Manufactured in Sweden and programmed in the USA with the highest security standards.
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