Amid wazirx hack ,it is clear not your keys not your crypto.
1.use crypto hardware wallets for secure storage .online wallets are not that much safe if PC is compromised with keystroke record software .
2. Don't write down seed words in personal diary or any common notebook .keep seed phrases at random places making them set of 4 or 5.
ex: keep 4 words at one book and another 4 at another book and another set of 4 phrases in personal diary and remember the sequence .Let know the location of seed to your trusted family members i.e ( son, daughter ,wife , father ).
3. Never let know strangers or any other friend who you can't define his character about your holdings.
4. Always keep update of wallet and if possible maintain seperate PC where you access crypto wallets and trading accounts.
thank you .be safe .
