Preventing network attacks

1. A computer-implemented method comprising: generating a usage profile for a computing device that accesses a network; determining a plurality of actual use real-time indicators for a network connection on the network; determining a plurality of expected use real-time indicators for the network connection; calculating a risk assessment value for the network connection by:

comparing the actual use real-time indicators to the expected use real-time indicators; and

increasing the risk assessment value when one of the actual use real-time indicators represents a greater use than a corresponding one of the expected use real-time indicators; and

performing a security action for the network connection based on the calculated risk assessment value by:

sending an informative alert to a user of the computing device based on the risk assessment value comprising a relatively low level of network attack risk; and

sending a warning alert to the user of the computing device based on the risk assessment value comprising a relatively elevated level of the network attack risk; and

dropping the network connection based on the risk assessment value comprising a relatively high value of the network attack risk.

2. The method of claim 1 , wherein the usage profile comprises a connection profile and an associated baseline, wherein the connection profile comprises:

a location of the user of the computing device;

an indicator that the user is participating in an event; and

an indicator whether a plurality of currently open network connections are from known connection sources.

3. The method of claim 2 , wherein the baseline comprises:

an average upload bandwidth rate; and

an average download bandwidth rate.

4. A computer program product comprising program instructions stored on a non-transitory computer readable storage medium, wherein the computer readable storage medium is not a transitory signal per se, the program instructions executable by a processor to cause the processor to perform a method comprising:

generating a usage profile for a computing device that accesses a network:

determining a plurality of actual use real-time indicators for a network connection on the network;

determining a plurality of expected use real-time indicators for the network connection;

calculating a risk assessment value for the network connection by: comparing the actual use real-time indicators to the expected use real-time indicators; and

increasing the risk assessment value when one of the actual use real-time indicators represents a greater use than a corresponding one of the expected use real-time indicators; and

performing a security action for the network connection based on the calculated risk assessment value by sending a warning alert to a user of the computing device based on the risk assessment value comprising a relatively low level of the network attack risk; and

dropping the network connection based on the risk assessment value comprising a relatively high value of network attack risk.

5. The computer program product of claim 4 , wherein performing the security action further comprises: sending an informative alert to the user of the computing device based on the risk assessment value comprising a relatively elevated level of the network attack risk.

6. The computer program product of claim 4 , wherein the usage profile comprises a connection profile and an associated baseline, wherein the connection profile comprises:

a location of a user of the computing device;

an indicator that the user is participating in an event; and

an indicator whether a plurality of currently open network connections are from known connection sources.

7. The computer program product of claim 6 , wherein the baseline comprises:

an average upload bandwidth rate; and

an average download bandwidth rate.

8. A system comprising: a computer processing circuit; and a non-transitory computer-readable storage medium storing instructions, which, when executed by the computer processing circuit, are configured to cause the computer processing circuit to perform a method comprising: generating a usage profile for a computing device that accesses a network;

determining a plurality of actual use real-time indicators for a network connection on the network;

determining a plurality of expected use real-time indicators for the network connection;

calculating a risk assessment value for the network connection by:

comparing the actual use real-time indicators to the expected use real-time indicators; and

increasing the risk assessment value when one of the actual use real-time indicators represents a greater use than a corresponding one of the expected use real-time indicators; and

performing a security action for the network connection based on the calculated risk assessment value by sending a warning alert to a user of the computing device based on the risk assessment value comprising a relatively low level of the network attack risk; and

shutting down a port for the network connection based on the risk assessment value comprising a relatively high value of network attack risk.

9. The system of claim 8 , wherein performing the security action comprises: sending an informative alert to a user of the computing device based on the risk assessment value based on the risk assessment value comprising a relatively low level of network attack risk.

10. The system of claim 8 , wherein the usage profile comprises a connection profile and an associated baseline, wherein the connection profile comprises:

a location of a user of the computing device;

an indicator that the user is participating in an event; and

an indicator whether a plurality of currently open network connections are from known connection sources.

11. The system of claim 10 , wherein the baseline comprises:

an average upload bandwidth rate; and

an average download bandwidth rate.