For all the benefits that digital data brings, it remains unpredictable at best and hundreds of things can go wrong with it. Ensuring timely backups, however, make an effective solution against such contingencies.
Salesforce has an advanced disaster-recovery system in place, catering to just about every disaster scenario. The chance of data loss owing to mistakes at the Salesforce end of the ecosystem, or due to natural calamities, is almost zero. In fact, nothing short of a global apocalypse, in which eventuality the data would be meaningless anyway, would result in Salesforce clients losing their data. Irrespective, it still makes sense for Salesforce users to back-up data on local hard drives.
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