{"id":1415,"date":"2026-08-28T08:45:58","date_gmt":"2026-08-28T08:45:58","guid":{"rendered":"https:\/\/kiberklaszter.hu\/?p=1415"},"modified":"2026-08-31T08:46:50","modified_gmt":"2026-08-31T08:46:50","slug":"kiberbiztonsagi-fogalomtar-mfa-mentes-es-titkositas-egyszeruen","status":"publish","type":"post","link":"https:\/\/kiberklaszter.hu\/en\/2026\/08\/28\/kiberbiztonsagi-fogalomtar-mfa-mentes-es-titkositas-egyszeruen\/","title":{"rendered":"Cybersecurity Glossary: MFA, Backup, and Encryption Made Simple"},"content":{"rendered":"

There are terms that pop up in almost every cybersecurity advisory, yet many people only have a superficial understanding of what they actually mean. The following three concepts are among the most basic, yet most effective, defense tools.<\/span><\/b>\u00a0<\/span><\/p>\n

\u202f<\/span>\u00a0<\/span><\/p>\n

MFA \u2013 one key is not enough<\/span><\/b>\u00a0<\/span><\/p>\n

MFA (Multi-Factor Authentication) means that logging in requires more than just one thing \u2013 typically your password \u2013 but also at least one other, independent confirmation, such as a code sent to your phone or a number displayed in an authenticator app. The point is that if someone gets your password (for example, from a data breach), they won\u2019t be able to log in with that alone, because the second factor is missing. It\u2019s like locking a safe with not only a key but also a second code that only you have \u2013 a burglar would need both.<\/span>\u00a0<\/span><\/p>\n

Backup \u2013 the safety net<\/span><\/b>\u00a0<\/span><\/p>\n

The essence of backup is that a copy of important data is regularly made and stored in another location, separate from the main system. If a ransomware virus encrypts it or a hardware failure destroys the original data, it can be restored from the backup without having to pay a ransom or losing the data permanently. According to the \u201c3-2-1 rule\u201d often recommended by experts, it is worth making three copies, storing them on two different media, and keeping at least one copy completely isolated from the network. However, a backup is only worth something if you try to restore it from time to time \u2013 an untested backup is just an assumption, not a guarantee.<\/span>\u00a0<\/span><\/p>\n

Encryption \u2013 data made unreadable<\/span><\/b>\u00a0<\/span><\/p>\n

During encryption, data is converted into a form that can only be read back with the appropriate key using a mathematical process. If an encrypted data carrier \u2013 such as a laptop or a pendrive \u2013 falls into unauthorized hands, the information stored on it will be practically useless to the acquirer without the key. Encryption applies not only to stored data (at rest), but also to internet traffic: when a website address starts with \u201chttps\u201d, it means that the communication between the browser and the server takes place over an encrypted channel.<\/span>\u00a0<\/span><\/p>\n

These three measures alone significantly reduce the chance and consequences of a successful attack \u2013 and their combined application provides one of the most important pillars of cybersecurity fundamentals for every business, regardless of size.<\/span><\/p>","protected":false},"excerpt":{"rendered":"

Vannak kifejez\u00e9sek, amelyek szinte minden\u00a0kiberbiztons\u00e1gi\u00a0tan\u00e1csban felbukkannak, m\u00e9gis sokan csak fel\u00fcletesen tudj\u00e1k, mit takarnak val\u00f3j\u00e1ban. Az al\u00e1bbi h\u00e1rom fogalom a legalapvet\u0151bb, ugyanakkor a leghat\u00e9konyabb v\u00e9delmi eszk\u00f6z\u00f6k k\u00f6z\u00e9 tartozik.\u00a0 \u202f\u00a0 MFA \u2013 nem el\u00e9g egyetlen kulcs\u00a0 Az MFA (Multi-Factor\u00a0Authentication, magyarul t\u00f6bbfaktoros hiteles\u00edt\u00e9s) azt jelenti, hogy a bejelentkez\u00e9shez nem el\u00e9g egyetlen dolgot \u2013 jellemz\u0151en a jelsz\u00f3t \u2013 megadni, […]<\/p>","protected":false},"author":5,"featured_media":1418,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-1415","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/kiberklaszter.hu\/en\/wp-json\/wp\/v2\/posts\/1415","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kiberklaszter.hu\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kiberklaszter.hu\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kiberklaszter.hu\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kiberklaszter.hu\/en\/wp-json\/wp\/v2\/comments?post=1415"}],"version-history":[{"count":2,"href":"https:\/\/kiberklaszter.hu\/en\/wp-json\/wp\/v2\/posts\/1415\/revisions"}],"predecessor-version":[{"id":1420,"href":"https:\/\/kiberklaszter.hu\/en\/wp-json\/wp\/v2\/posts\/1415\/revisions\/1420"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kiberklaszter.hu\/en\/wp-json\/wp\/v2\/media\/1418"}],"wp:attachment":[{"href":"https:\/\/kiberklaszter.hu\/en\/wp-json\/wp\/v2\/media?parent=1415"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kiberklaszter.hu\/en\/wp-json\/wp\/v2\/categories?post=1415"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kiberklaszter.hu\/en\/wp-json\/wp\/v2\/tags?post=1415"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}