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Terms","updated":false,"chapter":"https://assets.bitdegree.org/crypto/assets/crypto-book/chapters/crypto-101-glossary.jpg","chapter_simple":"https://assets.bitdegree.org/crypto/assets/crypto-book/chapters-simple/crypto-glossary-101.jpg","rating":100,"sections":["A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"]}],"nextSection":{"id":653,"original_id":null,"author_id":40,"translator_id":null,"title":"What is Ransomware?","slug":"what-is-ransomware","section":"R","keyword":"Ransomware","status":"published","definition":"is a specific malware that allows hackers to take control of or encrypt the documents of their victims in order to steal them and have them decrypted or reissued in exchange for a ransom.","content":"<p>Ransomware is <strong>a type of virus</strong> that allows hackers to take control of or encrypt the documents of their victims in order to steal them for a ransom and have them decrypted or reissued as a result. Ransom payments can <strong>range from a few dollars to hundreds of dollars</strong>, and they are often made through <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-digital-currency/">
digital currencies</strong></a>.</p>\n<p>There are three main types of ransomware:</p>\n<ul>\n<li>Scareware</li>\n<li>Screen locker</li>\n<li>Encrypting ransomware</li>\n</ul>\n<p>Firstly, scareware programs work in a way of producing pop-up messages that supposedly <strong>inform you about a found malware in your device</strong>. They typically claim that if the user wishes to get rid of it, the only way is to pay a particular amount of capital.</p>\n<p>Screen lockers, on the other hand, occur when users are locked out of their devices as a result of a hacker's actions. Targets get a notification from law enforcement agencies when their devices wake up indicating that <strong>criminal activity has been discovered on their devices or system</strong> and that a fee must be paid.</p>\n<p>Encryption ransomware programs encrypt a user's data and offer them the option of paying or having their data stay encrypted. No security program or application is available that can decode an encrypted system or document.</p>\n<p>Moreover, ransomware hackers primarily use <a href=https://www.bitdegree.org/"https://www.bitdegree.org/crypto/buy-bitcoin-btc/">Bitcoin as their <strong>main form of ransom payment</strong> that they demand from their victims.</p>\n<p>Ransomware programs are able to gain access to devices or systems using several methods. The most popular method would be <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-phishing/">phishing schemes</strong></a> since these schemes are carried out by sending an email presented as the targets' trusted documents.</p>\n<p>These emails are filled with infected attachments and links. So, when they are activated, ransomware programs <strong>take over the device</strong>. When this happens, hackers usually threaten their victims that they will either destroy, sell, or leak the data <strong>if the ransom isn’t going to be paid</strong>.</p>","level":"medium","meta_title":"What is Ransomware? Definition & Meaning | Crypto Wiki","meta_description":"Ransomware meaning: Ransomware - is a specific malware that allows hackers to take control of or encrypt the documents of their victims in order to steal them and have them decrypted or reissued in exchange for a ransom.","meta_keywords":null,"language":"en","created_at":"2022-03-28T13:13:00.000000Z","updated_at":"2022-05-13T14:32:23.000000Z","preview_url":"https://www.bitdegree.org/crypto/learn/crypto-terms/what-is-ransomware"},"prevSection":{"id":650,"original_id":null,"author_id":42,"translator_id":null,"title":"What is ROI?","slug":"what-is-roi","section":"R","keyword":"ROI","status":"published","definition":"an indicator that shows the proportion of a company's net profit to its investment costs.","content":"<p>ROI is a <strong>short term for “Return on Investment”</strong> and it is used to show the proportion of a company's net profit to its investment costs. It's a metric that <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-cryptocurrency/">cryptocurrency traders use to assess a crypto investment's performance and efficacy, as well as to compare the performance of various crypto assets in a portfolio.</p>\n<p>A <strong>positive ROI number</strong> indicates that the crypto investment is profitable, whilst a negative ROI number indicates that the crypto investment is losing money. Investors in a crypto project through a <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-token-sale/">token sale</strong></a> might ask about the ROI or the projected ROI.</p>\n<p>ROI is determined by <strong>subtracting the investment's initial value</strong> from its current value and dividing the result by the investment's initial value. The formula is:</p>\n<p><span style=\"color: #236fa1;\">ROI = (Present Value of Investment - Initial Value of Investment) / Initial Value of Investment</span></p>\n<p>After calculating ROI, the rate of return can be determined by multiplying the ROI by 100.</p>\n<p>Though there are <strong>some drawbacks</strong> to using ROI to determine the profitability of cryptocurrencies. The time period is not taken into consideration while calculating ROI. A crypto trader who wants to sell might have to wait considerably longer than another crypto trader. <strong>The former trader's ROI might be lower</strong> in this situation, but the ROI figure wouldn't reflect that.</p>\n<p>Note that increased profits and lower costs might lead to a higher ROI. However, while this <strong>might exaggerate the ROI figure</strong>, it also could result in increased expenses and performance concerns for the crypto projects in the future.</p>\n<p>Lastly, keep in mind that, when analyzing the success of crypto assets, ROI is a valuable indicator but it should always be used in combination with other factors.</p>","level":"easy","meta_title":"What is ROI? Definition & Meaning | Crypto Wiki","meta_description":"ROI meaning: ROI - an indicator that shows the proportion of a company's net profit to its investment costs.","meta_keywords":null,"language":"en","created_at":"2022-03-28T12:01:16.000000Z","updated_at":"2022-05-13T14:32:23.000000Z","preview_url":"https://www.bitdegree.org/crypto/learn/crypto-terms/what-is-roi"},"currentChapter":"R","currentSection":"what-is-rust","chapterTitle":"R","readingLevel":"easy"},"url":"/crypto/learn/crypto-terms/what-is-rust","version":"cdd198d50cbe5c9c21c9329d7c096ffc"}" class="container-fluid d-flex crypto-book p-0"> Crypto Terms: Letter R
What is Rust?
Rust MEANING:
Rust -
a multi-paradigm programming language.
Let's find out Rust meaning, definition in crypto,
what is Rust,
and all other detailed facts.
Rust is a multi-paradigm programming language that prioritizes both performance and security. Rust is similar to C++, and it can provide memory safety by validating references with a borrow checker.
Graydon Hoare at Mozilla Research created this programming language, but Brendan Eich, Dave Herman, and others also contributed during its development stage. While developing Servo layout, browser engine, and compiler, this programming language was refined.
Rust is one of the most used programming languages since 2016. It is often used by big companies such as Microsoft and others to secure safety-critical software components.
Rust is surrounded by an entire ecosystem. Aside from the Rust compiler, it covers a wide range of areas related to developing and maintaining high-quality software. Through rustup (Rust toolchain installer), Rust toolchains can be installed and managed. Besides, Rust installations come with Cargo, a command-line tool for managing rust nets, dependencies, and generating documentation, among other things.
