Since I started working for Telefonica Tech in 2019, first as an external contractor and then as an employee since late 2022, I have had the opportunity to work with different clients, projects and environments related to cybersecurity.
I am currently working in a small technical office with four people dedicated to a client whose main objective is to protect information systems, networks, devices and data from cyber threats, attacks and vulnerabilities.
To achieve this goal, we rely on a series of specific tools and technologies such as antivirus software, firewalls, VPNs, Active Directories, Group Policies, email managers, cloud tools, CCN tools, etc.
We carry out a series of tasks such as analysing alerts and dealing with incidents, managing access, and administering and managing all the technologies and tools at our disposal. We then carry out another series of more specific tasks or projects such as migrations, updates, or customer requests related to security.
In this case, in the OT, as there are only a few of us, we all have to be versatile and know how to perform all the tasks mentioned above, although each of us is specialised in a particular technology or product.
In my specific case, as I belong to the Cloud Security vertical, my work focuses on administering and managing cloud security, which in the case of this customer is contracted to MICROSOFT. This includes managing email protection (EXCHANGE), computer antivirus (DEFENDER), information compliance (PURVIEW), cloud application security and active directory security in the cloud, among other things.
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