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Herein, is sha256 still secure?

sha256 is not designed to hash passwords. To hash passwords, you should prefer to use hash functions created for this usage. PBKDF2: It's actually designed as a key stretching function, ie. a secure way to derive a cryptographic key from a given password, but its properties make it also suitable for password storage.

Similarly, which is better sha1 or sha256? Additionally, SHA1 has also been deemed quite vulnerable to collision attacks which is why all browsers will be removing support for certificates signed with SHA1 by January 2017. SHA256 however, is currently much more resistant to collision attacks as it is able to generate a longer hash which is harder to break.

Subsequently, one may also ask, is SHA 1 deprecated?

NIST formally deprecated use of SHA-1 in 2011 and disallowed its use for digital signatures in 2013. As of 2020, attacks against SHA-1 are as practical as against MD5; as such, it is recommended to remove SHA-1 from products as soon as possible and use instead SHA-256 or SHA-3.

Is Sha 2 and Sha 256 the same?

So yes, SHA-2 is a range of hash functions and includes SHA-256. The SHA-2 family consists of multiple closely related hash functions. It is essentially a single algorithm in which a few minor parameters are different among the variants.