Cryptocoin security is dependent on:
- Strength of algorithm
- Distribution of mining resources
- Difficulty
- Network strength
Long hash chains are cryptographically nonsense (x5, x6, x11, x15, x17)
Read up and choose the algo you like
SHA256
Script
Script-Chacha
Script-N
Scrypt Jane
NeoScript
yescrypt,
ZR5
Cryptonight
Blake-256
M7
jackpot,
nist5,
fresh,
myr-groestl,
m7,
blake (any),
keccak (sha-3),
heavy/hefty1,
fugue256,
deep,
s3,
spread,
dmd-groestl,
lyra2RE,
pluck,
whirl (any),
zr5,
skein (any),
The mother of all "X" coins (X6) Sifcoin (Blake, BMW, Groestl, JH, Keccak, Skein)
the first child was Quark
The father (X5) Qubitcoin (Luffa, Cubehash, Shavite, Simd, Echo)
The second child X11 (Blake, BMW, Groestl, JH, Keccak, Skein, Luffa, Cubehash, Shavite, Simd, Echo)
..........
.