I asked a similar question earlier this year when my Mom was placed in hospice and I needed to share Mom's personal data with my brother and sister. From the feedback given me, I learned that 1. email (or the "cloud" )is not secure, 2. most of us do not transmit much sensitive data via email that is really desirable to hackers (they are more interested in hacking your bank), and, if you do want to share something sensitive then 3. do it via phone or snail mail. If you notice, most sensitive info is not emailed to you. Rather you are sent a notification from your bank, brokerage firm, electric company, etc. that a statement/bill is available. Then you go to the institution's secure website and access the data. I'm going on a 2 week cruise at Christmas and want someone in my family to have a copy of my passport, drivers license, health insurance card, credit cards I'm taking, and my itinerary. My first thought was to scan and email the documents....then I thought of ID theft. 99.99999% of my emails aren't sensitive, but this particular data in the wrong hands could cause me grief. So I am hand carrying hard copies to my sister when I visit her for Thanksgiving. Also, remember emails aren't "private" in the sense that if you send me an email with information that you really do not want shared, there is nothing but my good character to stop me from sharing it once I receive it. If I get ticked off at you and I have damaging pics, writings that you don't want others to hear/read, well.....bam I got you, then maybe I feel bad I did so...but too late. And, of course, work email and computer usage is open to your employer's eyes. On the bright side, email is a great, fast way to stay in communication if it is not sensitive data

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