there are lots of scammer every where here and there and to avoid this set of scallywags
here i want to list out six very necessary tips every one should know before buying that goods online


1. Stick with trusted brands that have a strong reputation

Sticking with popular brands is as good as any advice when shopping online. Not only do you know what you’re getting by way of quality and price, but you also feel more confident that these well-established names have in place robust security measures.
However, be careful, as fraudsters often create fake and professional looking websites to lure in unsuspecting victims. Their efforts can be quite remarkable, as researchers at Google and the University of San Diego found last year.
They observed how high-quality phishing sites are so effective that they have a 45 percent success rate at extracting data. For average-looking fakes, that figure drops down to 14 percent.

2. Use credit cards and secure payment services instead of debit cards

As a general rule, credit cards, in comparison to debit cards, offer consumers additional protection when shopping online. The main advantage of the latter is that a credit card account is in no way linked to whatever funds you actually own. And that’s not all – there are other benefits too.
“Unlike debit cards, credit cards may have a limit on the monetary amount you will be responsible for paying if your information is stolen and used by someone else,” explains Stay Safe Online, a National Cyber Security Initiative.
Likewise, using secure online payment services, like that offered by PayPal, are advisable. The advantage with these providers is that they act as a kind of middle man, whereby you deliver payment to them – i.e. PayPal – and they then pass this onto the retailer. Your bank details always remain unseen.

3. Be wary of dodgy offers that are too good to be true

We have all come across a legitimately unbelievable offer and jumped on it with enthusiasm, glad to have been afforded the opportunity to purchase something at a fraction of its true cost.
But that is rare. The old adage of “if it’s too good to be true, then it probably is” should inform how you shop online – caution is required because there are plenty of scams looking to hook you in with tempting offers. In some cases, the perpetrators are looking to simply infect your device.
It is advisable to be doubly vigilant during holiday seasons, like Christmas, where there does tend to be a lot of amazing and genuine offers. The more reliable the brand and the more secure the URL, the more likely it is that it’s authentic. If not, then walk away.

4. Opt for your mobile phone network over public Wi-Fi

Public Wi-Fi is unquestionably something we as consumers now expect. From shops to cafes to restaurants, being able to access the internet with little or no cost is in tune with our connected way of living.
However, when it comes to buying online, all the convenience that comes with public Wi-Fi can be overshadowed by the many risks that are associated with this service. You’d be surprised at how unsecure many hotspots actually are and how easy they are to attack.
There are ample solutions to resolving the vulnerabilities associated with public Wi-Fi, but, in general, when out and about, opt to use data provided by your network provider when going online.

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source
https://www.welivesecurity.com/2015/10/27/top-tips-on-buying-online-in-a-safe-and-secure-way/