Han knekker adgangskoden.

Because Norwegian usually puts the definite article at the end of the noun instead of using a separate word before it.

• adgangskode = password / access code
• adgangskoden = the password / the access code

The ending -en is the definite ending for many masculine nouns in Bokmål.

So:

• en adgangskode = a password
• adgangskoden = the password

Yes, han normally means he.

In this sentence:

• Han = he

It is the subject of the sentence, the person doing the action.

Because knekker is the present tense form of the verb å knekke.

• å knekke = to crack / to break
• knekker = cracks / is cracking

So:

• Han knekker adgangskoden. = He cracks the password.

This -er ending is very common for present tense verbs in Bokmål.

The base form is å knekke.

You might see forms like:

• å knekke = to crack
• knekker = cracks / is cracking
• knekket = cracked / has cracked

In this sentence, knekker is the present tense.

No. Å knekke is a broader verb. It can mean things like:

• to break
• to crack
• to snap
• figuratively, to crack a code, case, or password

Examples:

• Han knekker pinnen. = He breaks the stick.
• Hun knekker koden. = She cracks the code.

So in your sentence, it is being used in a figurative/technical sense.

It is a compound noun:

• adgang = access / entry
• kode = code

So adgangskode literally means access code.

Depending on context, English might translate it as:

• password
• passcode
• access code

Because Norwegian, like German, often forms compound nouns by joining words together into one word.

So:

• adgang
  • kode = adgangskode

This is completely normal in Norwegian. English sometimes writes similar ideas as two words, but Norwegian often prefers one compound word.

Yes. This is the basic Norwegian sentence pattern:

• Subject + Verb + Object

So here:

• Han = subject
• knekker = verb
• adgangskoden = object

This is the most straightforward word order for a simple statement.

Yes, in many contexts it can.

Norwegian present tense often covers both:

• He cracks the password
• He is cracking the password

The exact English translation depends on context. Norwegian does not always mark the difference as clearly as English does.

It is a valid and understandable word, but in everyday modern usage, passord is often more common for password.

Compare:

• adgangskode = access code / password
• passord = password

So Han knekker adgangskoden is correct, but in some contexts you may also hear:

• Han knekker passordet.

No. In Norwegian, the k in kn- is pronounced.

So knekker starts with a pronounced kn sound, unlike English knee where the k is silent.

That is something English speakers often notice right away.

Because the definite form is not made by simply adding -en to the full word mechanically. Norwegian nouns often have a specific definite form.

Here the correct pattern is:

• adgangskode → adgangskoden

This happens with many nouns ending in -e:

• en kode → koden
• en gate → gaten / gata (depending on style)
• en adgangskode → adgangskoden

Often it would sound that way, because cracking a password usually suggests bypassing security or gaining access improperly.

However, the sentence itself only says:

• He cracks the password

Whether it is legal, ethical, or part of security testing depends on context. The grammar does not tell you that by itself.