Cybersecurity

Cyber ​​attack: what it is, how it works, objective and how to prevent it: Birthday attack

A cyber attack is definible as a hostile activity against a system, a tool, an application or an element that has a computer component. It is an activity that aims to obtain a benefit for the attacker at the expense of the attacked. Today we look at the birthday attack

There are different types of cyber attacks, which vary according to the objectives to be achieved and the technological and contextual scenarios:

  • cyber attacks to prevent a system from functioning,
  • that point to the compromise of a system,
  • some attacks target personal data owned by a system or company,
  • cyber-activism attacks in support of causes or information and communication campaigns
  • etc…

Among the most common attacks, in recent times, there are attacks for economic purposes and attacks for data flows. After analyzing the Man in the Middle, malware, il phishing, e password attack, in recent weeks, today we see thebirthday attack.

Those who carry out the cyber attack, alone or in groups, are called Chippers

Birthday attack

Birthday attacks are made against hashing algorithms that are used to verify the integrity of a message, software or digital signature. A message processed by a hash function produces a message digest (MD) of fixed length, independent of the length of the input message; this MD uniquely characterizes the message. The birthday attack refers to the likelihood of finding two random messages that generate the same message digest when processed by a hash function. If an attacker computes the same MD for his message as the user, he can safely replace the user's message with hers, and the receiver will not be able to detect the replacement even if it compares the message digest.

If you have suffered an attack and need to restore normal functioning, or if you simply want to see clearly and understand better, or want to prevent: write to us at rda@hrcsrl.it. 

You might be interested in our Man in the Middle post

If you have suffered an attack and need to restore normal operation, or if you simply want to see clearly and understand better, or want to prevent: write to us at rda@hrcsrl.it. 

You might be interested in our Malware Post

Attack prevention Birthday

While birthday attacks are potentially very dangerous, you can do a lot to prevent them by minimizing the risks and keeping your data, money and… dignity safe.

It works out of Hash

Use a collision-resistant (strongly collision-free) hash function.

To do this, proceed as follows:

  1. A number of variations of messages are generated that the potential sender feels ready to sign;
  2. At the same time, a number of altered messages are generated, but which produce the same results as Hash (therefore collisions are produced);
  3. At this point it is sufficient to detach the signature from the original message and attach it to the altered message. Since these messages are a collision for the Hash function, they will be indistinguishable for the recipient.
 
Get a good antivirus

You absolutely must get an effective and reliable antivirus software.
If your budget is tight, you can find numerous free antivirus online.

It is important to always keep the browser we use to surf the Internet updated and possibly install an analysis tool capable of checking the presence of vulnerabilities in the code of a website.

SECURITY ASSESSMENT

It is the fundamental process for measuring your company's current level of security.
To do this it is necessary to involve an adequately prepared Cyber ​​Team, able to carry out an analysis of the state in which the company finds itself with respect to IT security.
The analysis can be carried out synchronously, through an interview carried out by the Cyber ​​Team or
also asynchronous, by filling in a questionnaire online.

We can help you, contact the HRC srl specialists by writing to rda@hrcsrl.it.

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SECURITY AWARENESS: know the enemy

More than 90% of hacker attacks start with employee action.
Awareness is the first weapon to combat cyber risk.

This is how we create "Awareness", we can help you, contact the HRC srl specialists by writing to rda@hrcsrl.it.

MANAGED DETECTION & RESPONSE (MDR): proactive endpoint protection

Corporate data is of enormous value to cybercriminals, which is why endpoints and servers are targeted. It is difficult for traditional security solutions to counter emerging threats. Cybercriminals bypass antivirus defenses, taking advantage of corporate IT teams' inability to monitor and manage security events around the clock.

With our MDR we can help you, contact the HRC srl specialists by writing to rda@hrcsrl.it.

MDR is an intelligent system that monitors network traffic and performs behavioral analysis
operating system, identifying suspicious and unwanted activity.
This information is transmitted to a SOC (Security Operation Center), a laboratory manned by
cybersecurity analysts, in possession of the main cybersecurity certifications.
In the event of an anomaly, the SOC, with a 24/7 managed service, can intervene at different levels of severity, from sending a warning email to isolating the client from the network.
This will help block potential threats in the bud and avoid irreparable damage.

SECURITY WEB MONITORING: analysis of the DARK WEB

The dark web refers to the contents of the World Wide Web in darknets that can be reached via the Internet through specific software, configurations and accesses.
With our Security Web Monitoring we are able to prevent and contain cyber attacks, starting from the analysis of the company domain (e.g.: ilwebcreativo.it ) and individual e-mail addresses.

Contact us by writing to rda@hrcsrl.it, we can prepare a remediation plan to isolate the threat, prevent its spread, and defiwe take the necessary remediation actions. The service is provided 24/XNUMX from Italy

CYBERDRIVE: secure application for sharing and editing files

CyberDrive is a cloud file manager with high security standards thanks to the independent encryption of all files. Ensure the security of corporate data while working in the cloud and sharing and editing documents with other users. If the connection is lost, no data is stored on the user's PC. CyberDrive prevents files from being lost due to accidental damage or exfiltrated for theft, be it physical or digital.

«THE CUBE»: the revolutionary solution

The smallest and most powerful in-a-box datacenter offering computing power and protection from physical and logical damage. Designed for data management in edge and robo environments, retail environments, professional offices, remote offices and small businesses where space, cost and energy consumption are essential. It does not require data centers and rack cabinets. It can be positioned in any type of environment thanks to the impact aesthetics in harmony with the work spaces. «The Cube» puts enterprise software technology at the service of small and medium-sized businesses.

Contact us by writing to rda@hrcsrl.it.

You might be interested in our Man in the Middle post

Ercole Palmeri: Innovation addicted

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