Can they finally find you from an IP address?

The Internet is not anonymous. Wherever you go, you leave traces that show who you really are. Some of them are bigger than others, but the bigger one is your IP address.

If someone has your IP address it is not difficult to find out your identity.

What are IP addresses?

Before we mention the practices, let's define what an IP address is. In short it is a number that identifies a computer on a network. There are two types of systems definition currently in use: IPv4 and IPv6.

In addition, there are two categories of IP addresses. Private IP addresses are used for μηχανών σε ένα κλειστό (τοπικό) δίκτυο. Το οικιακό σας δίκτυο Wi-Fi, για παράδειγμα, διαθέτει ιδιωτικές διευθύνσεις IP, που επιτρέπουν στον υπολογιστή σας να μιλήσει στην your games, your router. Every device connected to the internet also has a unique internal IP address.

Then there are the IP addresses that are used throughout the Internet for the exact same purpose. The service provider (ISP) provides you with an address that takes one of two forms: static or dynamic.

Static IP addresses are fixed. Like your phone number. Even if you change the device, your number remains the same. A static IP address never changes.

Dynamic IP addresses are commonly used in homes or businesses. Unlike static addresses, they change. The ISP changes IP addresses on the network almost every day. This is a more economical solution as it allows easier maintenance and disposal by ISPs.

Most websites maintain detailed logs for their visitors for many reasons. For example, a website such as Facebook or Dropbox is used to commit a crime. Someone created a fake account to post content that violates the law.

Authorities can find out who this person is by asking the website what the person's IP was.

IP addresses identify computers, not individuals. To overcome this hurdle, researchers must first determine which ISP owns this IP address.

This is very easy of course. ISPs usually have “blocks” or “pools” of IP addresses. They are registered in public που λειτουργούν από το RIR (Περιφερειακό μητρώο Διαδικτύου). Υπάρχουν πέντε μητρώα και το καθένα είναι υπεύθυνο για τη διαχείριση διευθύνσεων IP στη δική του περιοχή. Έτσι, η εύρεση ενός ISP είναι απλώς θέμα πληκτρολόγησης της διεύθυνσης IP στη σωστή βάση δεδομένων.

If you search for an IP on Google, you will find dozens of websites that can help you find the hosting company. You can also use the Whois tool to get the same results.

Once you know the ISP, it's just a matter of routine. As we have mentioned in previous publications, the Authorities may oblige individuals or companies to provide evidence that they have. Otherwise, a fine or imprisonment may be imposed.

Authorities can then access the name and address of the subscriber who committed the offense.

But what if your ISP uses dynamic addresses?

It doesn't matter, because ISPs, like websites, keep logs. From the examination of them, they can easily identify which subscriber had a particular IP address at a particular time.

Of course, this does not necessarily mean that we have found the criminal. If, for example, he used public Wi-Fi to commit the crime, the authorities can only locate this public access point.

However, then they can continue the search, looking at footage from security cameras etc.

It is worth noting that law enforcement agencies are not the only ones interested in naming IP addresses. Attorneys or law firms often collect IP addresses used to download pirated content. They then issue calls to ISPs asking for their customers' contact information.

Of course, anyone can access the internet anonymously, using Tor or a VPN. There are services VPN claiming that they do not maintain usage logs, although it is difficult to verify whether this is true or not.

Connecting from a VPN chain makes your identification much more difficult. Authorities can track an IP address in a VPN company, but if a criminal connects to that VPN from one to another and then another, authorities will have to search many computers and different companies for more details.
To mention that if the use of VPNs is combined with an operating system like Qubes, the investigation of the detection of the criminal will become much more difficult.

Tracking IP addresses is not the only way to catch cybercriminals. For example, o Ross Ulbricht, ο οποίος διαχειριζόταν τη ναρκο- στο DarkWeb, πιάστηκε όταν αποκάλυψε το πραγματικό του όνομα σε ένα online message board.

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Written by giorgos

George still wonders what he's doing here ...

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