sinraidekiru tanmatu de puraibasiisettei wo minaosu.

Because 信頼できる modifies the noun 端末.

In Japanese, a verb or verb-like expression can come directly before a noun to describe it:

• 信頼できる端末 = a device that can be trusted / a trusted device

Here, できる means can, so 信頼できる literally means can be trusted.

They are related, but not the same.

• 信頼する = to trust
• 信頼できる = can be trusted / trustworthy

So:

• 彼を信頼する = to trust him
• 信頼できる人 = a person who can be trusted

In this sentence, 信頼できる端末 means a device that is considered safe or trustworthy.

端末 means terminal, device, or user device, depending on context.

In everyday tech-related Japanese, it often refers to things like:

• a smartphone
• a tablet
• a computer
• another device used to access a service

So in this sentence, 端末 is best understood as device.

で marks the place, means, or tool used for an action.

So:

• 信頼できる端末で = on a trusted device / using a trusted device

It shows that the action 見直す is carried out by means of that device.

Why not に?

• に often marks a destination, specific location of existence, or target.
• で is the normal choice when you mean do something at/in/on/with a place or tool.

So 端末で見直す = review it on a device.

Because プライバシー設定 is the direct object of 見直す.

• プライバシー設定を見直す = review the privacy settings

The particle を marks the thing being acted on.

Yes, literally it is:

• 見 = see/look
• 直す = fix, do again, redo

But as a set expression, 見直す often means:

• review
• reconsider
• go over again
• reassess

So in this sentence, it means review your privacy settings, not just physically look at them again.

Yes, but that is very normal in Japanese.

Japanese often leaves out the subject when it is obvious from context. This sentence could imply:

• you should review your privacy settings
• review your privacy settings
• please review your privacy settings

Depending on context, it may sound like an instruction, a recommendation, or a step in a guide.

Japanese often omits possessives like my, your, and their when the meaning is clear from context.

So プライバシー設定 can mean:

• privacy settings
• your privacy settings
• the privacy settings

In English, you usually need to add your if it is an instruction. In Japanese, that is often unnecessary.

Yes, 見直す is in the plain, dictionary form.

This form is commonly used in:

• headings
• instructions
• UI text
• manual steps
• short written commands

So 信頼できる端末でプライバシー設定を見直す。 sounds like a concise instruction, similar to:

• Review privacy settings on a trusted device.

If it were more polite, it might be:

• 信頼できる端末でプライバシー設定を見直してください。

Because プライバシー is a loanword from English: privacy.

Katakana is often used for:

• foreign loanwords
• technical terms
• brand names
• emphasis

Also, 設定 means settings or configuration, so:

• プライバシー設定 = privacy settings

This is a very common kind of tech vocabulary combination in Japanese.

It breaks down like this:

• 信頼できる = trustworthy / can be trusted
• 端末 = device
• で = on / using
• プライバシー設定 = privacy settings
• を = object marker
• 見直す = review

So the structure is:

[trusted device] + で + [privacy settings] + を + [review]

A more natural English rendering is:

• Review your privacy settings on a trusted device.

It means the device can be trusted.

That is because 信頼できる describes the noun as something that is worthy of trust.

So:

• 信頼できる人 = a trustworthy person
• 信頼できる情報 = reliable information
• 信頼できる端末 = a trusted/trustworthy device

It does not mean the device is doing the trusting.

Yes, depending on context, 見直す could be translated as:

• review
• recheck
• go over
• revisit
• reassess

But in a tech or security context, review is usually the most natural translation in English.

So review your privacy settings is probably the best choice here.