How secure is Apple pay and Google wallet? With many merchants and stores accepting Apple pay and Google wallet, what should I be concerned with about using either of the two for payment? Can unauthorized transaction be performed with the two without the one using Google wallet or Apple pay knowing? How long are the data collected by the merchant stored on their server?

How secure is multifactor password authentication? With the recent J P Morgan chase penetration, no matter how long a password it, it won’t protect you. Also personal privacy is at all-time low. What algorithm does the multifactor password authentication uses? What differentiates multifactor password authentication from the traditional password form?

Why is Malwarebyte anti malware pro blocking my VPN software from running? I installed the program about a week ago and the program is running fine. I later try to connect to internet through VPN and the VPN program is not working. Although I can connect to the internet and the connection is working fine, but using VPN is the issue. How can I fix this problem?

I am using VPN to open a website which is not accessible from my country. I was using Hot Spot Shield but recently it has stopped working and I get the error message that "Hot Spot Shield has stopped working". What can I do to fix this probem? I have tried reinstalling the application. Can you suggest me some good VPN services as well please?

I have an outlook client that I use to read my emails, However recently I have noticed that I'm unable to receive emails but I can send, what could be the problem? I have not changed my settings in my email client, how can I trouble shoot the email account using the email client? Is there unique software that can be used to effectively check for this fault?

I have a latest dell laptop with Windows 8 Pro installed in it. I am trying to connect to my network via a VPN and I cannot do so. Whenever I connect through the VPN, i get no network access. When I connect without the VPN, i get network access. Is it a problem with my VPN software? I am using Hotspot Shield. Is this an issue with the network configuration? Has it something to do with Windows 8?

What is the best, easy to use, economical protection strategy against ‘Stingray’ surveillance system? How can someone know if Stingray or any controversial surveillance system is collecting personal and sensitive record on a cell phone or any other radio devices? What distinctive features should one look out for in an area that one suspect of some clandestine surveillance activity is going on?

What are the vulnerabilities of cloud computing? By the way individual and large corporations  are seriously embracing cloud computing and virtualization, which is more susceptible to attacks, how do we guide against the attacks or threats? What are the latest cloud computing security breakthroughs that is giving hackers a sleepless night?

What is the best approach to Near Field Communication (NFC)? With many devices, tablets, smart phone, etc. now equipped with near field communication, how secure are the data collected by these NFC enabled devices? What are the data collected? Where are these data stored? How secure are the data where they are stored?

What are the differences between one time password (OTP) and security tokens? Is it true that some tokens work as hardware OTP? Which of the two implements a cryptographic challenge response authentication? Can an attacker remotely made an unauthorized transaction while someone is using OTP? are the two part of multilevel authentication?