Recently, Adobe confirmed that it will stop updating and distributing Adobe Flash at the end of 2020 although frankly, it would be wise for you to migrate away from this very vulnerable software program as soon as possible. In 2010 Steve Jobs vociferously complained about its security and would not allow it to used on iPhones, iPods and iPads due to its serious vulnerability to being hacked. Flaws in Adobe Flash have been exploited by hackers and identity thieves against individuals, companies and government agencies including the U.S. State Department and the White House. Adobe will still be issuing security patches until the end of 2020, but now is a good time to move away from Adobe Flash if you have not already done so.
TIPS
If you are going to continue to use Adobe Flash, it is imperative that you update your software with the latest security patches when they are issued.  Here is a link to the latest updates for Adobe Flash.
https://www.us-cert.gov/ncas/current-activity/2017/11/14/Adobe-Releases-Security-Updates
However, it may well be time for you to replace Adobe Flash to avoid future problems.
Here is a link to a website with alternative plugins you may wish to consider to replace Adobe Flash.
http://alternativeto.net/software/flash-player/
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