What Are The Disadvantages Of E Business

Some Disadvantages of an E-Business are given as under:

Less security

The biggest obstacle in the growth of e-commerce is the issue of security. Internet is not a secured medium of communication. There are tools or options available to hackers whereby they can not only monitor but also control any data communicated over the internet. Particularly, people are not comfortable while providing their financial information (credit card no. etc.) online due to the fact that this information can be hacked and misused.

Less privacy

The nature of internet technology e-business is such that private information of the online customers can be easily collected and recorded on the server side. The buying pattern of a customer can be known to an e-shop with the help of certain sophisticated tools. You know that cookies can be used to track customers online in Electronic business. On one hand these technologies are useful for doing customization but on the other, they can be said to have caused the breach of informational privacy rights in E-Commerce of a person.

No physical proximity with items purchased

In certain cases the customers cannot decide about buying a thing before they can physically examine it. For example, a customer would ideally want to touch and feel the texture of a piece of cloth before buying. Similarly, a customer would actually want to smell a perfume before purchasing it. In the above or any similar case, people cannot expect to physically examine/test the thing while buying it online. Rather, they would prefer to buy such things from physical shops. An e-business has a limitation in this regard. This all known as Disadvantages of an E-Business

What Is The E Cash Payment System

A company, DigiCash, has pioneered the use of electronic cash or e-cash. Anonymity of the buyer is the key feature of this system. There are three participants in it, namely, buyer, merchant and bank. Both, symmetric and asymmetric type of cryptography is used in this system. Buyers and merchants, both, have accounts in the E-cash bank. Buyers withdraw coins against their account and store them in e-cash wallet software (Cyber wallet) on their computer. Cyber wallet stores and manages coins and records every transaction. Merchant forwards coins to e-cash bank which ensures that these have not already been spent and credits the account of the merchant.

E-cash Coins

The currency used in this payment system is called an e-cash coin or simply coin. A coin consists of three elements or parts - serial #, key version and serial no. signed by the secret or private key of a certain denomination of the e-cash bank. In other words, a coin of one dollar would consist of the following: Coin = Serial#, key version, {Serial #}SK bank’s $1 key Each coin has a unique value, partly minted by the client and partly by the e-cash bank.

Minting of the coin

A long serial no. is randomly generated by the client’s Cyber wallet in order to mint a coin. This serial no. is blinded, which means that it is multiplied with a blinding factor “r” and sent to the e-cash bank for signatures. Thus, the e-cash bank cannot see the serial no. it is signing. Key version (corresponding public key of the bank) is also part of the coin, and is sent usually at the time of account opening. An e-cash bank may have 1 dollar signature, 5 dollar signature or 10 dollar signature etc. If the client wants to mint a coin of 2 dollars then e-cash bank would use its private or secret key of 2 dollars to sign the serial no.

Herpes and E Coli Found in Beauty Testers

Ladies, beware next time you go to the beauty counter!  Sharing makeup– even with your closest friends– isnt the wisest idea to begin with, never mind an entire mall. Which is why we werent surprised that makeup testers at beauty stores were found to be virtual germ incubators– think herpes, pink eye, and E. coli. The L.A. Times reported that those were just some of the serious infections found nesting in communal makeup brushes.

Dr. Zein Obagi, a Beverly Hills-based dermatologist, explains to the paper, "If a woman has a cut on her lip and borrows lipstick from someone who has a cold sore, shell get a cold sore. You can pass herpes [the cold sore virus], conjunctivitis [pink eye] and all sorts of things through sharing makeup."

While this may be an extreme case, the amount of bacteria one is susceptible to when sampling makeup is astounding. The article cites a two-year study from Rowan University on public makeup testers. Conducted by Dr. Elizabeth Brooks, the study found that on an average Saturday, 100 percent of the makeup at cosmetic counters was tainted with staph, strep, and E. coli bacteria. (Just a friendly reminder, but E. coli is normally associated with feces).

Now that we’ve completely grossed you out, there are some solutions (if avoiding makeup testers proves to be too difficult for you). Instead of makeup brushes, Brooks suggests using disposable applicators, which most counters carry. As for the actual makeup, Brooks insists, “clean the surface of the makeup tester with a tissue or a tissue dipped in alcohol before applying makeup.” While these solutions may reduce the chance of infection, the safest way to stay healthy is to avoid communal testers completely.


Read more at StyleCaster: http://www.stylecaster.com/news/8100/herpes-and-e.coli-found-in-beauty-testers-the-scary-truth-at-the-makeup-counter#ixzz0nBuolpxn