A firewall could be a device that allows/blocks traffic as per outlined set of rules. These are placed on the boundary of trusted and untrusted networks.
Data leak is nothing but data knowledge getting out of the organization in an unauthorized manner. Data will get leaked through numerous ways in which – emails, prints, laptops obtaining lost, unauthorized transfer of data to public portals, removable drives, pictures, etc. There are varied controls which may be placed to make sure that the info doesn’t get leaked, many controls will be limiting upload on web websites, following an internal encryption answer, limiting the emails to the interior network, restriction on printing confidential data, etc.
3. How can you avoid ARP poisoning?
ARP poisoning is a type of network attack that can be resolved through these techniques:
Using Packet filtering: Packet filters can filter out & block packets with clashing source address data.
Keeping away from the trust relationship: Organizations ought to develop a protocol that depends on trust relationship as of little as they can.
Utilize ARP spoofing software: Some programs assess and certify information before it is transmitted and blocks any information that is spoofed.
4. What do you understand by footprinting in ethical hacking? What are the techniques utilized for footprinting?
Footprinting is nothing but accumulating and revealing as much as data about the target network before gaining access into any network.
Open Source Footprinting: It will search for the contact data of administrators that will be utilized for guessing the password in Social Engineering
Network Enumeration: The hacker attempts to distinguish the domain names and the network blocks of the target network
Scanning: After the network is known, the second step is to spy the active IP addresses on the network. For distinguishing active IP addresses (ICMP) Internet Control Message Protocol is a functioning IP address
Stack Fingerprinting: the final stage of the footprinting step can be performed, once the hosts and port have been mapped by examining the network, this is called Stack fingerprinting.
Denial of Service is a malicious attack on the network that is executed by flooding the system with useless traffic. Despite the fact that DOS does not cause any data breach or security breach, it can cost the site proprietor a lot of cash and time.
Buffer Overflow Attacks
Pharming: In this strategy, the attacker compromises the DNS (Domain Name System) servers or on the user PC with the goal that traffic is directed towards the malicious site
Defacement: In this strategy, the attacker replaces the firm’s site with an alternate page. It contains the hacker’s name, images and may even incorporate messages and background music.
Cowpattyis implemented on an offline dictionary attack against WPA/WPA2 networks utilizing PSK-based verification (e.g. WPA-Personal). Cowpatty can execute an enhanced attack if a recomputed PMK document is accessible for the SSID that is being assessed.
Network Enumeration is the revelation of hosts/gadgets on a network, they tend to utilize obvious disclosure protocols, for example, ICMP and SNMP to gather data, they may likewise check different ports on remote hosts for looking for surely known services trying to further recognize the function of a remote host.
Phishing and spoofing are totally different beneath the surface. One downloads malware to your PC or network, and the other part tricks you into surrendering sensitive monetary data to a cyber-crook. Phishing is a technique for recovery, while spoofing is a method for delivery.
Most broadly utilized scripting language for Hackers is Python. Python has some very critical highlights that make it especially valuable for hacking, most importantly, it has some pre-assembled libraries that give some intense functionality.
11. What can an ethical hacker do?
An ethical hacker is a computer system and networking master who systematically endeavors to infiltrate a PC framework or network for the benefit of its owners to find security vulnerabilities that a malicious hacker could potentially exploit.
System sniffing includes utilizing sniffer tools that empower real-time monitoring and analysis of data streaming over PC systems. Sniffers can be utilized for various purposes, regardless of whether it’s to steal data or manage systems.
Network sniffing is utilized for ethical and unethical purposes. System administrators utilize these as system monitoring and analysis tool to analyze and avoid network-related issues, for example, traffic bottlenecks. Cybercriminals utilize these devices for untrustworthy purposes, for example, character usurpation, email, delicate information hijacking, etc.