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SIM cards

11 articles

Best travel apps: maps, taxis, food, internet
  • travel

Travel safely and comfortably

We’ve made a guide to the best apps for travelers.

  • Kaspersky Team

  • July 3, 2025

How to buy and connect a travel eSIM with Kaspersky eSIM Store
  • travel

Internet on the go with Kaspersky eSIM Store

We’ve launched the Kaspersky eSIM Store — an easy way to buy and activate eSIM cards, giving you instant cellular internet access in over 150 countries and regions worldwide.

  • Kaspersky Team

  • June 17, 2025

How to protect your social media accounts from SIM swap attacks
  • Instagram

SIMulated giveaway on Instagram: the prize is your account!

A popular blogger’s Instagram account was hijacked using a SIM-swap attack, and deepfakes were generated to scam followers.

  • Kaspersky Team

  • April 28, 2025

What is SIM swapping, and how does it threaten business?
  • 2FA

What SIM swapping is, and why business should care

SIM swap fraud is back in vogue. We explain what it is, the danger it poses to organizations, and how to guard against such attacks.

  • Alanna Titterington

  • March 18, 2024

Simjacker: SIM-based phone surveillance
  • mobile devices

Simjacker: SIM-based phone hacking

Hacked SIM cards allow spying. We explain how and why.

  • Ilja Shatilin

  • September 30, 2019

  • eSIM

How eSIM works

New iPhones support eSIM technology. We explain what it is and who will soon be using it.

  • Ilja Shatilin

  • January 23, 2019

Total surveillance: hacking GSM networks over the air
  • Carriers

Total surveillance: hacking GSM networks over the air

Ways that hackers can access a user’s calls.

  • Ilja Shatilin

  • March 24, 2016

What are virtual SIM cards and what do they do?
  • Apple

What are virtual SIM cards and what do they do?

Apple SIM, Google Project Fi and, for example, GigSky are all virtual SIM cards. OK, what’s so virtual about them?

  • Ilja Shatilin

  • March 16, 2016

SIM cards. Part II: SIM card cloning and security
  • Carriers

SIM cards: attack of the clones

SIM cards can be cloned. How is it possible and what does it have to do with cybercriminals?

  • Ilja Shatilin

  • January 19, 2016

The evolution of the SIM card
  • cellular

The evolution of the SIM card

Observing the evolution the good old SIM card went through and the results so far

  • Ilja Shatilin

  • January 5, 2016

Gemalto sim card hack
  • breach

Two Billion Owned SIM Cards is a Real-Life Nightmare

New allegations against the NSA claim the group hacked into the network of the world’s largest SIM card provider, stealing encryption keys to millions of devices.

  • Brian Donohue

  • February 27, 2015

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