Hello,
as the title say it, i am new to Bitcoin. Is there a standart knowlege to be secure or anything else i need to know
Welcome.
If you aren't a technical person than secure yourself with one of these companies:
1)
https://greenaddress.it 2-of-2 multisignature with nLockTime (possible temporarily unable to spend funds) / Free
https://bitcointalk.org/index.php?topic=521988.02)https://www.bitgo.com/
2 of 3 multisig / Free
3)
https://www.coinbase.com/vault or coinbase.com
2 of 3 multisig / insured / Free
4)
https://www.bitalo.com/why_bitalo 2-of-2 multisignature
5) Circle.com
Otherwise here is a lot more knowledge to secure your coins yourself:
https://bitcointalk.org/index.php?topic=858604.0Use some common sense as well.
1) Avoid investing in Bitcoin or any alts until you are very familiar the technology. Many alt coins are pump and dump scams. Simply use bitcoins as a useful tool in the meantime
2) Do not mine bitcoins until you go through extensive learning
3) Do not invest or gamble away your bitcoins with any service or person who guarantees returns