WiFi Security: Assessment of threats in wireless networks
08/03/2024Wifi connectivity has gone from being limited to restricted environments to becoming omnipresent in virtually every aspect of our daily lives. The ability to connect to the Internet from anywhere, be it at home, in a café, at work, in public spaces, or even in-flight, has enhanced the convenience in our daily lives. Moreover, the expansion of Wifi networks and the use of new manufacturing technologies now allow the interconnection of devices, leading to the significant rise of the Internet of Things (IoT) and providing users with more comprehensive control over their digital environments. However, this proliferation of Wifi networks has also given rise to new threats that require careful evaluation and effective security strategies to ensure secure and risk-free Wifi connections for our data and information. Common Wifi security threats include data interception Man-in-the-Middle (MITM) attacks One of the fundamental challenges in Wifi security is preventing MITM attacks, where an intruder inserts themselves into the communication between two parties, compromising the integrity and confidentiality of sensitive data such as passwords and financial information. Spoofing of access points Hackers can create fake Wifi networks that mimic legitimate ones to attract unsuspecting users. Once connected to these malicious networks, our data can be captured by cybercriminals who may sell or misuse it for illicit purposes. Tips for achieving a secure Wifi connection: Strengthen authentication and use security protocols Prioritize strong encryption for networks to protect confidential information transmitted through it. WPA (Wifi Protected Access) encryption uses stronger algorithms than its predecessor, WEP (Wired Equivalent Privacy), making it more difficult for hackers to intercept and decipher data. Advanced security protocols like WPA3 provide individualized data encryption and advanced two-factor authentication (2FA) methods, adding an extra layer of security by requiring additional verification. Device management Properly manage and monitor devices connected to Wifi networks to minimize risks associated with the large number of connected devices in homes and businesses. Regularly update the router firmware and all connected devices to address potential vulnerabilities. Segmentation of the network to separate critical devices from less secure ones also helps mitigate the risk of threat propagation. Secure Router Configuration The router secure configuration is what will ensure the robustness and overall security of a wireless network. The router, being the first point of contact for devices connected to the Internet, acts as the first line of defence against potential attacks. For this reason, it is important to understand that the proper configuration of the router not only guarantees a stable and efficient connection but also establishes a protected environment that safeguards the integrity and privacy of our data. How to configure the router securely? To ensure a correct and secure configuration of the router, it is recommended to: Change the default username and password of the router, as these are easily accessible to attackers. Use strong passwords containing a combination of letters, numbers, and special characters. Disable remote administration to prevent cybercriminals from accessing the router externally. Enable WPA2 or WPA3 encryption instead of the outdated WEP for enhanced network security. Optionally, disable SSID broadcast to make the network less visible and harder to detect by hackers. Keep the router firmware updated to address vulnerabilities and improve overall device security. By following these steps, you will strengthen the security of your wireless network and reduce the chances of experiencing unwanted attacks or intrusions.
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How to sign a PDF document with electronic signature?
24/06/2021When a document needs to be signed by one or more people, the usual thing, until now, has been to print it and stamp by hand the necessary signatures to validate or make its content official. This requires paper, printer, ink, but above all access to the document by all signatories, which is not always easy due to geographical location, availability, timing, etc. With teleworking on the rise and a growing globalization of business, these drawbacks have become more evident than ever, although they have found a quick and effective solution in electronic signatures. What is an electronic signature for? The electronic signature is a digital validation system for documents that unequivocally identifies the signatory. The electronic signature is assimilated to the handwritten signature and therefore its digital stamping on a document gives it the same validity, as it would have had with a handwritten signature. What are the advantages of electronic signatures? Electronic signatures simplify document management processes that require the validation of documents such as pdf signatures, facilitating remote signing by one or more people regardless of where they are located, or the situation or time of day they receive them. This flexibility contributes to the efficiency and agility of this type of procedure and being a secure signature system, it is suitable and useful in many areas related to business management, administrative management, e-commerce, informed consent and many other procedures. In addition to the versatility, practicality and security of the online PDF signature, we must also point out, as a great advantage of this process, its contribution to paperless. How to sign electronically? The electronic signature is easy to implement through tools specifically designed to guarantee not only the correct validation of the cryptographic signature or signatures included in a PDF document, but also that it cannot be altered and that all the necessary signatures required by each situation can be added. Within the framework of this type of tool, the most advanced ones, in addition to being compatible with any browser and accessible from any type of device - computer, tablet, Smartphone,... -, make it easy to convert PDF any Word, Excel, JPG, PowerPoint... file for signing. They also allow users to request a verifiable digital signature, view the properties of the digital signature and send the document directly by email to the signatories and once signed, forward it to all parties to download it. In addition, to guarantee the privacy of the documents and the security of the online signatures, these transfers are made through encrypted files with TLS encryption. Also, when we sign documents using this type of tool, they offer the option of including a LTV (Long Term Validation) time stamp that certifies the validity of the signature in the long term. For all these reasons, tools for signing PDF documents with electronic signatures are now a must for companies and businesses in all areas where process optimization, security and sustainability are a priority.
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What is IT maintenance? Prevention is better than cure
19/04/2021Keeping our IT equipment in good condition is essential for the smooth running of the business. The main goal of a good IT maintenance is to ensure the proper functioning of the hardware and software of our network and IT equipment and thus contribute to the overall efficiency of our business. What is the purpose of computer maintenance services? Computer maintenance services try to anticipate failures and offer us solutions to manage our computers and computer network, optimize their operation and secure all the information contained in our machines. In case of incidents, a good computer and systems technician will solve them and also find the cause of the error to prevent it from happening again. Benefits of hiring a computer maintenance and web maintenance service Common computers, servers, hard drives, networks, connections and antivirus problems can be avoided or prevented if we carry out all their preventive maintenance needs. Advance failure detection. Incidents can occur at any time, nipping them in the bud can save us a lot of headaches throughout the life of equipment. Improve the performance and reliability of your computers and network. This ensures our software is always up to date, thus improving the efficiency, speed and machines operation and other connected equipment. Prevents data loss. Data loss can wreak havoc. Keeping the equipment in good condition reduces the chances of these accidents that are completely neutralized if, in addition, our computer maintenance services include backups and contingency and recovery plans in case of disaster. Improve our protection against cyber-attacks. Regular maintenance means that our systems have the latest and, potentially, most effective security software installed to prevent any problem with malware, viruses, spyware or other unwanted attacks. Reduce our costs. With up-to-date computers we will always maximize their useful life and minimize the risk of loss due to unplanned downtime caused by computer problems. It helps us to keep the website properly updated and backed up. The most complete IT services include additional high-value services such as web maintenance for companies and backups of the entire project so nothing is lost in case of problems. What are the functions of a computer maintenance technician? Periodic reviews of computers, equipment and networks. To ensure from day one that everything is working properly, the software is up to date and the hardware is adequate. Server management with activity monitoring. To anticipate incidents or react immediately if they occur. Backup copies. To prevent data loss both on physical equipment and in the cloud. IT security. To keep machines protected and minimize the risks of viruses, computer attacks and improper intrusions. User management. To guarantee exhaustive control of how and who can access the data stored on the company's computers and servers. Remote and on-site technical assistance. Telephone support. To ensure quick resolution for major incidents and restore the service in the shortest possible time.
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