We are making a cool program to greet our clients. it expects two arguments you can type to a textbox: your name and the length of your name. simple enough, right? and secure as can be…

your job is to prove us wrong and trigger a crash providing malicious input that is not filtered by the program.

if you think you found it, you may test your input on this page below, at the solution field.

#include
#include
#include
#include

int main(int argc, char* argv[]) {
assert(argc == 3);
char name[64];
int len;
len = atoi(argv[2]);
assert(len < 64);
memcpy(name, argv[1], len);
name[len] = '\0';
std: : cout < < "hello " < < name < < ", nice to meet you! " < < std: : endl;
return 0;

Suppose you are an ad-serving company and you maintain a log of cookie data for ads you serve to the web pages for a particular vendor (say amazon). a. how can you use this data to determine which are the best ads? b. how can you use this data to determine which are the best ad formats? c. how could you records of past ads and ad clicks to determine which ads to send to a given ip address? d. how could you use this data to determine how well the technique you used in your answer to part c was working? e. how could you use this data to determine that a given ip address is used by more than one person? f. how does having this data give you a competitive advantage vis-à-vis other ad-serving companies?