penafieljlm.com - /john.peñafiel/ – Security Researcher | Software Developer

Description: Security Researcher | Software Developer

Example domain paragraphs

Security Researcher | Software Developer

Open Source Intelligence (OSINT), or more precisely, the use of open source intelligence sources to profile the internet exposure of organisations (i.e. footprinting), is one of my favorite areas in information security particularly because it’s more or less of an open-ended problem at the moment.

There are a lot of interesting things that you can do with stuff that you can find in the open. For example, if you can manage to get your hands on a list of IP blocks that belong to an organisation that you’re doing a penetration test for, you can do a sweep on it and check for live hosts. Another example is, if you can manage to get your hands on a list of email addresses that belong to an organisation, you can iterate over it and cross-check each email address with a service such as HaveIBeenPwned in ord