Every year on November 30th we celebrate the International Information Security Day, a date that reminds us how important it is to take care of our digital lives. We handle more data than ever, we use multiple devices and we stay connected from almost anywhere, which means security is no longer something we can leave for later. Since the well known 1988 worm showed how vulnerable systems could be, this day encourages us to look at how we protect what we use every day.

Many incidents begin with very simple actions, such as reusing a password, opening a file in a hurry or postponing a phone update. In a context where attacks grow each year and become more sophisticated, these small gestures carry a lot of weight. It is not about being a technical expert, it is about adopting small habits that reduce risks naturally.

A few facts help make this even clearer, without complicating it:

  • A large part of security breaches are caused by human errors that can be avoided with simple routines.
  • Attacks targeting people who work outside the office increase every year because personal networks and devices are often less protected.
  • Many scams succeed by taking advantage of routine, fatigue or distractions, not by using complex technical flaws.
  • On this path, Telefónica Tech supports companies and public administrations by protecting their infrastructures, helping them keep their data safe and strengthening trust in their digital environments.

International Information Security Day is a good moment to review small actions that can make a real difference. Changing an old password, enabling an additional verification step, updating your phone or paying a little more attention to incoming messages is often enough to avoid many problems. Digital security is a shared responsibility and every gesture contributes to a safer environment for everyone.