Efani and Tangem Join Forces to Secure U.S. Crypto Investors from SIM Swap Attacks

Mark Kreitzman
calender icon
July 18, 2025

Efani and Tangem Team Up to Protect U.S. Crypto Investors from Hackers — With an Exclusive Security Bundle

As digital threats grow more sophisticated, securing your cryptocurrency is no longer optional. Efani, a leader in secure mobile service, and Tangem, a pioneer in cold wallet technology, have joined forces to defend U.S. crypto investors from common, costly attacks.

This alliance strengthens your security from mobile to wallet — and comes with an exclusive offer:  Get a free Tangem Family Pack (worth $140) and $99 off each Efani line when you sign up through efani.com/tangem by Dec 31, 2025 (while supplies last). Or, use promo code SECUREMYCRYPTO for the best current discount on Tangem wallets.

              Book a call at efani.com/tangem to schedule a call with a sales agent

Is your cellphone vulnerable to SIM Swap? Get a FREE scan now!

Scan Now

Please ensure your number is in the correct format.
Valid for US numbers only!

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

SIM Swap Protection

Get our SAFE plan for guaranteed SIM swap protection.

Protect Your Phone Now

The Growing Risk: SIM Swaps and Crypto Hacks

Hackers are increasingly targeting crypto users through SIM swapping — hijacking your phone number to access texts, 2FA codes, and ultimately your crypto wallets and accounts.

Efani: Mobile Security Made for Crypto Holders

Efani offers both AT&T and Verizon, protects against SIM swaps by default, adds privacy, and a $5 million insurance policy in the event of a mobile-based SIM swap hack that results in losses. It’s the most secure phone service for crypto investors, entrepreneurs, and public figures with zero SIM swaps since the inception of Efani in 2018.

Tangem: Simple, Secure Cold Wallets

Tangem’s NFC-enabled physical cards let you securely store crypto offline — no apps, no USBs, no technical expertise. The Tangem Family Pack includes two 3-card sets for backup or sharing, providing one of the easiest, most secure ways to protect your digital assets.

SIM Swap Protection

Get our SAFE plan for guaranteed SIM swap protection.

Protect Your Phone Now

How to Qualify (U.S. Residents Only):

  1. Purchase Efani at efani.com/tangem
  2. Activate and port your mobile number to Efani
  3. Use the service for a few days
  4. Agree to waive Efani’s 60-day money-back guarantee (to prevent fraudulent use)
  5. Efani will ship your free Tangem Family Pack

Note: You must port over your existing mobile number to Efani.

Monthly

$99.00
Per Month
Unlimited talk, text, and data across North America.
Global High-Speed Data
Unlimited texting to 200+ countries
Hotspot & Wi-Fi calling
No Contract
SIM Security backed $5M Insurance Coverage
60-Days 100% Money Back Guarantee
No Activation or Shipping Fee.

Yearly

$999.00
Per Year
Unlimited talk, text, and data across North America.
Global High-Speed Data
Unlimited texting to 200+ countries
Hotspot & Wi-Fi calling
No Contract
SIM Security backed $5M Insurance Coverage
60-Days 100% Money Back Guarantee
No Activation or Shipping Fee.

A Smarter Crypto Security System

Passwords alone aren’t enough. The Efani–Tangem alliance delivers layered, reliable protection for crypto investors — with valuable perks to get you started.

   Efani SAFE Plan includes the following for no additional charges;

  • Can choose between AT&T or Verizon network
  • Voice, SMS and Data in US/CAN/MEX
  • Hotspot
  • Wi-Fi calling
    • Receive calls free over Wi-Fi globally
    • Call to US for free from any Wi-Fi in the world 
  • 2nd eSIM for global data roaming (10GB per month)
  • SIM swap security
  • Added privacy
  • 5M insurance 
  • ** iPhone 13 or higher can use the 2nd data eSIM to receive calls globally or make calls back to the US using cellular data with no additional costs

                  Book a call at efani.com/tangem to schedule a call with a sales agent

Efani “Features” interview of Tangem Ambassador: Tangem Promo on Youtube

Mark Kreitzman reviews Tangem (Rumble): Tangem Promo on Rumble

Mark Kreitzman
General Manager, Efani Secure Mobile

I am the Chief Cyber Evangelist at Efani Mobile, with over 25 years of experience in enterprise and consumer cybersecurity, including nine years specializing in mobile security. I have played a pivotal role in building cybersecurity companies that were later acquired by Microsoft and Cisco Systems. My expertise spans sales, partnerships, and technical integrations, particularly in early-stage startups.

Related Articles

SIM SWAP Protection

Get our SAFE plan for guaranteed SIM swap protection.