Computer security is an important topic in the world of computers. If you are good in enhancing computer security and related devices, you should use your skills to earn money by bidding on jobs posted on Freelancer.com.

Computer Security can also be called IT or Cyber security. It refers to information security applied to computers, related devices and networks. This is a wide field, covering all mechanisms and processes used in protecting computers and related devices from attacks and unauthorized accesses. Computer Security also protects computer data from loss due to unexpected circumstances or natural disasters.

There are many computer users in need of Computer Security solutions. All over the world, there is a great need for professionals in this sector. If you are an expert in matters involving computer security, then you should use your skills to increase your income. This will be easy when you are part of Freelancer.com, the leading freelance online site where many employers post jobs on a daily basis. You can start earning money today by simply creating an account on Freelancer.com and bidding on many computer security related jobs available on the site.

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    39 Gefundene Jobs, Preise in EUR

    Ok for this project you’ve been given several codes that you need to try and decode. You’ll need to research some of the most common encoding schemes used to try and break each of the codes. An experienced security expert can spot most encoding schemes very quickly, the trick is to check the character set used in the encoded message and the length of the encoded message, these will poi...

    €24 (Avg Bid)
    €24 Gebot i.D.
    2 Angebote

    We need to simulate sinkhole or sybil attack using cooja simulator in RPL. Thus, we need to modify the source code of objective function that handles rank calculation. All this must be done in contiki OS 2.7

    €180 (Avg Bid)
    €180 Gebot i.D.
    2 Angebote

    Mixed method data analysis quantitative using SPSS (simple statistics) then using MAXQDA for interview coding ) phd level then discussion

    €388 (Avg Bid)
    €388 Gebot i.D.
    13 Angebote

    I have attached a file below kindly have a look at it and let me know if you can do it perfectly. Kindly first have a look and only message me if you can do it and if you understand each part of it. Once you agree to it ill provide you with the answer template on which you have to do it.

    €17 (Avg Bid)
    €17 Gebot i.D.
    24 Angebote

    Show me my network and device vulnerabilities.

    €150 (Avg Bid)
    €150 Gebot i.D.
    21 Angebote

    Looking for help setting up a Synology Diskstation with SSL and a private domain name, access through my router (the diskstation has an internal static IP) setting up tight security policies and firewall rules, and implementing best practices for data security, virus protection and automated backup.

    €37 / hr (Avg Bid)
    €37 / hr Gebot i.D.
    17 Angebote
    Cisco Network Engineer 5 Tage left
    VERIFIZIERT

    Location of the Job: NEW YORK (USA) Type of the job: On-Site Duration: 1 to 2 Days Max Hi, We need a Cisco Field Engineer to do a LAN MAINTENANCE IN NEW YORK estimated job is one day. please see attached document for the job description let me know if you have questions.

    €28 / hr (Avg Bid)
    €28 / hr Gebot i.D.
    12 Angebote

    Hi, I am working on a mini project on the topic, "Security analysis of RPL network protocol in IOT systems". I would like to simulate Blackhole attack against RPL using Contiki cooja simulator and analyse the performance of RPL under blackhole attack (power consumption with and without malicious motes). The requirements are as follows: 1. Setup a simulated environment capable of gat...

    €424 (Avg Bid)
    €424 Gebot i.D.
    1 Angebote
    encryption 5 Tage left

    latest image encryption techniques

    €78 (Avg Bid)
    €78 Gebot i.D.
    8 Angebote
    Expert developer for Networking 5 Tage left
    VERIFIZIERT

    I am looking for an expert programmer in networking

    €95 (Avg Bid)
    €95 Gebot i.D.
    5 Angebote

    Hi All I have a Cisco 3945 router, with SEC image. It also has a Zone based firewall. I need someone to provide the configuration to allow me to VPN in using a Samsung Mobile, Apple Mobile and Windows 10 Machine - ie a raft of devices to VPN in. It must be encrypted, so no PPTP etc. Thanks Kris

    €49 (Avg Bid)
    €49 Gebot i.D.
    21 Angebote
    Task on network analysis 5 Tage left
    VERIFIZIERT

    Small task on network analysis. Deadline 24 hours Amount usd 20

    €18 (Avg Bid)
    €18 Gebot i.D.
    14 Angebote
    Suspicious user identification 5 Tage left
    VERIFIZIERT

    There is requirement to identify suspicious users from web server log file. Definition of suspicious users - Suspicious users are the users other than attack users. They are suspicious because they don't have any particular aim to visit a web application. They neither do hacking activities. But they even not normal users. They do other than normal activities without any purpose. For example,...

    €129 (Avg Bid)
    €129 Gebot i.D.
    13 Angebote
    smalicode, repackaging 4 Tage left
    VERIFIZIERT

    for learning purposes i need someone who know how to write smali language code or java code that can be further converted to smali. and some help in repackaging.

    €24 (Avg Bid)
    €24 Gebot i.D.
    3 Angebote

    Looking for someone who can teach me penetration testing and other topic of cyber security.

    €12 / hr (Avg Bid)
    €12 / hr Gebot i.D.
    21 Angebote
    Recovery Help 4 Tage left

    I am need of help in writing a grant to expand my non-profit recovery ministry.

    €381 (Avg Bid)
    €381 Gebot i.D.
    17 Angebote

    Hello, Looking for someone who is expert about Bring Your own device policy to help me with writing something.

    €33 (Avg Bid)
    €33 Gebot i.D.
    10 Angebote

    I need someone to run Distributed machine learning algorithms to improve IoT security.

    €46 (Avg Bid)
    €46 Gebot i.D.
    4 Angebote

    I am a penetration tester researcher for a corporate firm and I am looking for a well-detailed technical analysis on post-exploitation analysis.

    €24 (Avg Bid)
    €24 Gebot i.D.
    10 Angebote
    networking 2 Tage left

    i need people to manage my networking

    €110 (Avg Bid)
    €110 Gebot i.D.
    18 Angebote
    IT Technical Writer 2 Tage left
    VERIFIZIERT

    A content writer with relevant IT experience who can provide all necessary data/reference/explanations etc with regards to the IT security topics given. The main topic are security properties, threats, vulnerabilities, CVE etc.

    €76 (Avg Bid)
    €76 Gebot i.D.
    38 Angebote

    Need Ethical hacker with knowledge in Blockchain and Crypto from Chennai, India who can work at the office space provided by us at flexible timing.

    €419 (Avg Bid)
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    5 Angebote

    PLEASE APPLY ONLY IF YOU ARE QUALIFIED - THIS JOB IS FOR GENIUS ONLY I want to test the level of security for my website. I need you to hack my own website and check if you can steal my own email database. If you manage to do this, help me find secure the website. The job interview will be done in skype video call only.

    €13205 (Avg Bid)
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    23 Angebote
    find the flag 2 Tage left
    VERIFIZIERT

    I want to find the flag in small website, this is for first step in my course -cyber security

    €26 (Avg Bid)
    €26 Gebot i.D.
    19 Angebote

    I have a windows virtual machine. I want an expert who can do Authentication relay attack on it and document all the steps to do it. This is to be done to check the windows feature "Extended Protection for Authentication". Testing is to be done for IIS and SQL Server 2017.

    €740 (Avg Bid)
    €740 Gebot i.D.
    3 Angebote

    To design a novel system architecture for chatting application or wireless lan

    €106 (Avg Bid)
    €106 Gebot i.D.
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    The idea is to do a digital signature but with Encryption, in this case we can retrieve the text and image ( not just hashing). I already have code in Java that do that and android app but I need to convert it to C#

    €158 (Avg Bid)
    €158 Gebot i.D.
    20 Angebote

    My computer is being attacked and datas are locked. Looking for someone to help unlock the datas. Below are messages I received when I turned on my computer. ? Your files are encrypted! ? -------------------------------------------------------------------------------- All your important data has been encrypted. To recover data you need decryptor. To get the decryptor you should: Send 1 test image...

    €479 (Avg Bid)
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    Nand flash rom refreshing 1 Tag left
    VERIFIZIERT

    Need some ONFI experts to help in accessing rom via Xilinx ISE design Suite or Vivado. I have my own rom, wanting to change the default rom.

    €4383 (Avg Bid)
    €4383 Gebot i.D.
    7 Angebote
    Need a good networking expert 1 Tag left
    VERIFIZIERT

    We need someone who is good at networking. Need to work from remote. Analyse the network topology of our client and resolve all the issues that is there in their network. Basically there are caching issues in our client's network. Need to view the network topology, scan for any problems and give us the report. Once the report is submitted, based on client approval, need to resolve the issues.

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    €257 Gebot i.D.
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    €58 Gebot i.D.
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    i need a report about group management in vehicular social network and how does helps to creates a secure communication .

    €175 (Avg Bid)
    €175 Gebot i.D.
    2 Angebote
    Modeling Vulnerabilities Using SMT 14 Stunden left
    VERIFIZIERT

    Given a vulnerable program, Model the vulnerability (the length of the source of the data is greater than that of the destination data in the sprinf function) by starting with declaring with buf and error as strings. then leverage Z3 (Z3 theorem prover) to generate concrete inputs of buf to trigger this bug/vulnerability. Please mention your experience with cybersecurity, programming, and vulner...

    €80 (Avg Bid)
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    The idea is to do a digital signature but with Encryption, in this case we can retrieve the text ( not just hashing)

    €19 (Avg Bid)
    €19 Gebot i.D.
    4 Angebote
    €378 Gebot i.D.
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    Write_up_10_Pages_Networking 5 Stunden left
    VERIFIZIERT

    Need to estimate the networking requirements As per office PCs, their locations etc

    €34 (Avg Bid)
    €34 Gebot i.D.
    10 Angebote

    Need a Network Administrator for improving the Connectivity in the office.;

    €13 / hr (Avg Bid)
    €13 / hr Gebot i.D.
    24 Angebote
    simple packet tracer project Beendet left
    VERIFIZIERT

    1. Nothing has been preconfigured for you. 2. Make the required physical connections as depicted in the diagram (below). 3. Configure the IP addresses as depicted in the diagram (begin with 192.168). 4. Configure eBGP as follows using the connected physical interfaces as update sources: * R1 to R3 * R1 to R2 * R3 to R4 * R4 to R5 * R2 to R5 5. Add a loopback on R1 and R5 with addresses 1.1.1.1/32 ...

    €27 (Avg Bid)
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    17 Angebote