Usimbaji fiche unalinda usiri wa faili.

Usimbaji fiche is a compound technical expression.

• usimbaji = encoding / encryption as a process
• fiche = secret / hidden

So together they mean encryption or literally something like secret encoding.

A useful thing to notice is that Swahili often puts the describing word after the noun, so fiche comes after usimbaji.

Unalinda can be broken into:

• u- = subject marker agreeing with usimbaji fiche
• -na- = present tense marker
• -linda = protect

So unalinda means it protects or it is protecting.

Because Swahili verbs agree with the noun class of the subject.

Here, the subject is usimbaji fiche, which is an abstract u- noun, so the verb takes the matching subject marker u-:

• usimbaji fiche unalinda

This is one of the big differences from English: the verb form changes to match the noun class, not just person and number.

This is a very common and useful distinction.

• siri = a secret
• usiri = secrecy / confidentiality / secretiveness

So in this sentence, usiri is better because the idea is not a secret as one item, but the abstract concept of confidentiality or secrecy.

That makes usalama wa taarifa, usiri, and similar u- nouns worth learning as abstract nouns.

Because the connector agrees with usiri, not with faili.

In usiri wa faili, the main noun is usiri. The phrase wa faili means of the file.

So the pattern is:

• usiri wa faili = the confidentiality/secrecy of the file

This wa is the associative or possessive linker, often translated as of.

A key point for learners: the linking word is chosen by the noun before it, not the noun after it.

Swahili usually does not use articles like English a, an, and the.

So:

• faili can mean a file or the file
• usiri wa faili can mean the secrecy of a file or the secrecy of the file

Context tells you which reading is intended.

Here it is most naturally singular: file.

But faili is a loanword, and like many Swahili loanwords in this class, the singular and plural can look the same in basic form. Context or agreement words help show the difference.

For example:

• faili hii = this file
• faili hizi = these files

So the noun itself may stay faili, while other words around it show singular or plural more clearly.

Yes. That is also possible, with a slightly different nuance.

• unalinda = protects / is protecting
• hulinda = habitually protects / generally protects

Since this sentence expresses a general truth, hulinda can sound very natural too.

So:

• Usimbaji fiche unalinda usiri wa faili = Encryption protects file confidentiality.
• Usimbaji fiche hulinda usiri wa faili = Encryption generally protects file confidentiality.

Yes. This is very standard Swahili word order:

• Subject: Usimbaji fiche
• Verb: unalinda
• Object: usiri wa faili

So it follows the familiar SVO pattern:

• Encryption / protects / file confidentiality

That makes this sentence quite straightforward structurally for an English speaker, even though the noun-class agreement is different from English.

Often yes in meaning, but grammatically it is broader than English apostrophe-s.

wa is a general linking word that can mean:

• of
• for
• sometimes something close to possession

So usiri wa faili is best understood as the confidentiality of the file or the file’s confidentiality.

Using of is often the safest way to understand this structure when you are learning.