For now that i know that safe is installing the latest version of electrum for bitcoin and other coin supported..
If you remember about the news about vulnerability of electrum past weeks ago you must read this
https://bitcointalk.org/index.php?topic=2702103.0All of those should be safe.
P.s: never heard of the Dash version, but since it's a subdomain on Dash's oficial website, it should be safe.
I know there was a scam version of electrum dash that people highlighted recently.
Electrum dash is having bugs and issue
lately so i think for no much better to use the official wallet for dash than using the electrum dash except if there's new update about the bugs been fix. ..