Through a Denial of Service (DoS) attack, a computer or server (of a website, for example) can be massively bombarded with data traffic, requests or disruptions. These crash or flood attacks render the computer or server (temporarily) unusable.
In a Distributed Denial of Service (DDoS for short) attack, the attacker uses more than 1 sender (usually large network of hacked computers) for his DoS attack.
Article 145, § 3a of the law of June 13, 2005 on electronic
communication
With a fine of 50 euros to 300 euros and imprisonment of 15
days to two years or with either of those punishments alone shall be punished the person, who
an electronic communications network or service or other electronic means of communication
used to cause a nuisance to his correspondent or damage
cause harm as well as the person who sets up whatever device is intended to be the
commit, as well as attempt to commit, the foregoing offense.
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