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From the TheGenieLab US - TheGenieLab Blog blog

Magento has the largest market share in the ecommerce software industry which makes it a target for hackers. The Shoplift exploit exposed earlier this year affected thousands of Magento stores. Magento released security patches to combat the breach however more can be done to ensure increased security.

Our friends over at Cloudways wrote an excellent blog post detailing the individual steps you can take to protect your Magento store.

TIP# 1: Use the latest Magento version
TIP# 2: Use two-factor authentication
TIP# 3: Set a custom path for the admin panel
TIP# 4: Acquire encrypted connection (SSL/HTTPS)
TIP# 5: Use Secure FTP
TIP# 6: Have an active backup plan
TIP# 7: Disable directory indexing
TIP# 8: Be wise with your Magento password
TIP# 9: Eliminate e-mail loopholes
TIP# 10: Invest in a sound hosting plan
TIP# 11: Prevent MySQL injection
TIP# 12: Get a Magento security review done
TIP# 13: Get in touch with the Magento Community


Read it here 13 Magento Security Tips To Keep Your Ecommerce Store Safe